MaCalculatriceEnLigne
io.github.tresor4k/macalc-mcp · v0.4.0 · MCP 2025-11-25
Calculatrices francaises : salaire net, SMIC, impots, bareme kilometrique, TVA, conversions.
Reachability
reachable
checked 2026-07-14 04:29 UTC
Registry status active
Tools pinned 446
e7e17a587436
Tools last changed
unchanged since first capture 2026-07-14
Provenance
Registry namespace io.github.tresor4k
(GitHub-account verified by the official registry)
Repository
github.com/tresor4k/macalc-mcp
Remote endpoints
https://macalculatriceenligne.com/api/mcp (streamable-http)
Observed changes
| When (UTC) | Event | Detail |
|---|---|---|
| 2026-07-14 03:21 | first capture | 446 tools pinned |
Pinned tool definitions (446)
| Tool | Description |
|---|---|
| list_bundles | List all available tool bundles (grouped by domain). Use this to discover which tools are available for a specific topic instead of browsing all 500+ tools. |
| get_bundle_tools | Get the list of tools in a specific bundle. Returns tool names and descriptions for the requested domain bundle. |
| calculate_french_income_tax | Calculate French income tax (IR) for 2026 using progressive brackets per Article 197 CGI with family quotient system. Returns: {income, family_quotient, total_tax, effective_rate_pct, marginal_rate_pct, brackets}. See list_bundles for... |
| calculate_french_salary | Convert French gross salary to net salary for 2026 (cadre, non-cadre, or civil servant). Returns monthly/annual net, social contributions, employer cost. See list_bundles for related 'finance-france' calculators. |
| calculate_french_vat | Calculate French VAT (TVA) — convert between HT (before tax) and TTC (after tax). Supports all 4 French VAT rates. Returns: {amount_ht, amount_ttc, vat_amount, vat_rate}. See list_bundles for related 'finance-france' calculators. |
| calculate_mortgage | Calculate mortgage/loan monthly payment, total cost, and optional amortization schedule. Returns: {principal, months, monthly_payment, total_interest, total_cost}. See list_bundles for related 'finance-france' calculators. |
| calculate_compound_interest | Compute compound interest growth A=P(1+r/n)^(nt). Use for savings, retirement projections, investment forecasting. Returns final amount, total interest, and yearly breakdown. See list_bundles for related 'finance-universal' calculators. |
| calculate_simple_interest | Compute simple interest I=P·r·t. Use for short-term loans, basic savings accounts, and homework. Returns interest amount and final balance. See list_bundles for related 'finance-universal' calculators. |
| calculate_loan_payment | Calculate monthly loan payment for any generic loan. Returns: {principal, monthly_payment, total_cost, total_interest}. See list_bundles for related 'finance-universal' calculators. |
| calculate_break_even | Compute break-even point in units and revenue. Use for business plans and pricing decisions. Inputs: fixed costs, price/unit, variable cost/unit. Returns break-even units and revenue. See list_bundles for related 'finance-universal' calculators. |
| calculate_profit_margin | Calculate gross margin, net margin, and markup percentage. Returns: {revenue, cost}. See list_bundles for related 'finance-universal' calculators. |
| calculate_roi | Compute Return on Investment as a percentage. Use to evaluate investments, marketing spend, or projects. Inputs: investment cost, return value. Returns ROI %, profit, and multiple. See list_bundles for related 'finance-universal' calculators. |
| calculate_discount | Calculate discounted price with optional successive discounts. Returns: {original_price, price_after_first, effective_discount_pct}. See list_bundles for related 'finance-universal' calculators. |
| calculate_vat_generic | Calculate VAT/GST/sales tax for any country with custom rate. Returns: {amount_before_tax, amount_after_tax, tax_amount, tax_rate}. See list_bundles for related 'finance-universal' calculators. |
| calculate_cost_price | Calculate unit cost price from raw materials, labor, and overhead. Returns: {total_cost}. See list_bundles for related 'finance-universal' calculators. |
| calculate_debt_to_income | Compute debt-to-income (DTI) ratio. Use for mortgage qualification or financial health checks. Inputs: monthly debt, monthly gross income. Returns DTI % and risk category. See list_bundles for related 'finance-universal' calculators. |
| calculate_inflation_adjustment | Adjust a nominal amount to a target year using a constant inflation rate. Use for real-value comparisons across time. Inputs: amount, inflation rate %, years. Returns adjusted value and total inflation factor. See list_bundles for... |
| calculate_purchasing_power | Compare purchasing power between two years. Use to translate historical prices, salaries, or savings to today's value. Inputs: amount, from-year, to-year, average inflation %. Returns equivalent value. See list_bundles for related... |
| calculate_percentage | Calculate percentages: value of total, percentage change, what percent. See list_bundles for related 'math' calculators. |
| calculate_average | Compute simple, weighted, geometric, or harmonic mean. Use for grade averages, returns, or rates. Inputs: values list, optional weights, mode. Returns mean and detail. See list_bundles for related 'math' calculators. |
| calculate_pythagoras | Find missing side of right triangle using Pythagorean theorem. Returns: {error}. See list_bundles for related 'math' calculators. |
| calculate_area | Compute area for common 2D shapes (rectangle, triangle, circle, trapezoid, etc.). Use for geometry, real estate, or paint estimates. Inputs: shape + dimensions. Returns area in input-units squared. See list_bundles for related 'math'... |
| calculate_volume | Compute volume for common 3D shapes (cube, cylinder, sphere, cone, prism). Use for geometry, packaging, or construction. Inputs: shape + dimensions. Returns volume in input-units cubed. See list_bundles for related 'math' calculators. |
| calculate_perimeter | Calculate perimeter/circumference for common shapes. Returns: {shape, perimeter}. See list_bundles for related 'math' calculators. |
| calculate_gcd_lcm | Calculate GCD (PGCD) and LCM (PPCM) of two integers using Euclidean algorithm. Returns: {gcd, lcm}. See list_bundles for related 'math' calculators. |
| calculate_equation | Solve 1st degree (ax+b=0) or 2nd degree (ax²+bx+c=0) equations. Returns: {error}. See list_bundles for related 'math' calculators. |
| calculate_sequence | Calculate nth term and sum of arithmetic or geometric sequence. Returns: {common_difference, nth_term, sum_of_n}. See list_bundles for related 'math' calculators. |
| calculate_fraction | Perform fraction operations: add, subtract, multiply, divide, simplify. Returns: {input, result, decimal}. See list_bundles for related 'math' calculators. |
| calculate_logarithm | Calculate logarithm in any base (natural, common, binary). Returns: {result}. See list_bundles for related 'math' calculators. |
| calculate_factorial_permutation | Calculate factorial, permutations P(n,r), and combinations C(n,r). Returns: {factorial}. See list_bundles for related 'math' calculators. |
| calculate_trigonometry | Compute sin, cos, tan and inverse functions in degrees or radians. Use for geometry, physics, navigation. Inputs: function, value, unit. Returns result and reciprocal. See list_bundles for related 'math' calculators. |
| calculate_base_converter | Convert numbers between bases (binary, octal, decimal, hexadecimal, any base 2-36). Returns: {input, decimal_value, result}. See list_bundles for related 'math' calculators. |
| convert_temperature | Convert temperature between Celsius, Fahrenheit, and Kelvin. Use for cooking, weather, science. Inputs: value, from, to. Returns converted temperature. See list_bundles for related 'conversions' calculators. |
| convert_distance | Convert distance between metric (m, km, cm, mm) and imperial (in, ft, yd, mi) plus nautical miles. Use for travel, sport, or engineering. Inputs: value, from, to. Returns: {input, factor}. See list_bundles for related 'conversions' calculators. |
| convert_weight | Convert weight/mass between kg, g, mg, lb, oz, st, tonne. Use for cooking, shipping, or fitness. Inputs: value, from, to. Returns converted mass. See list_bundles for related 'conversions' calculators. |
| convert_volume | Convert volume between L, mL, cL, fl_oz, cup, tbsp, tsp, gal_us, gal_uk. Use for cooking and science. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_area | Convert area between m², km², ha, are, acre, ft², yd², cm². Use for real estate, agriculture, or construction. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_speed | Convert speed between km/h, mph, m/s, knots, ft/s. Use for travel, sport, or maritime/aviation. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_pressure | Convert pressure between Pa, kPa, MPa, bar, psi, atm, mmHg, mbar, torr. Use for engineering, tires, weather. Inputs: value, from-unit, to-unit. Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_data_storage | Convert between digital storage units (binary and decimal). Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_energy | Convert energy between J, kJ, cal, kcal, kWh, BTU, eV, ft-lb. Use for nutrition, electricity, science. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_angle | Convert angle between degrees, radians, gradians, turns, arcminutes, arcseconds. Use for math, navigation, surveying. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_time | Convert time between seconds, minutes, hours, days, weeks, months, years. Use for project planning or unit homogenization. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_fuel_consumption | Convert fuel consumption between L/100km, mpg-US, mpg-UK, km/L. Use for car comparison across regions. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_cooking | Convert cooking measurements between ml, L, g, kg, cup, tbsp, tsp, fl_oz, oz. Use for recipe scaling and translating. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators. |
| convert_shoe_size | Convert shoe sizes between EU, US (men/women), and UK systems. Use for online shopping. Inputs: size, from, to, gender. Returns converted size. See list_bundles for related 'conversions' calculators. |
| calculate_grade_average | Compute simple or weighted grade average. Use for school report cards. Inputs: grades list, optional weights/coefficients. Returns weighted average and missing-grade-needed forecast. See list_bundles for related 'education' calculators. |
| calculate_probability_binomial | Calculate binomial probability P(X=k) and cumulative P(X<=k). Returns: {exact_probability, cumulative_probability, std_deviation}. See list_bundles for related 'education' calculators. |
| calculate_statistics | Calculate descriptive statistics: mean, median, mode, std dev, quartiles. Returns: {count, std_deviation, min, max, range, iqr}. See list_bundles for related 'education' calculators. |
| calculate_rule_of_three | Solve rule of three (cross-multiplication): if a→b, then c→? Use for proportions, recipe scaling, or unit pricing. Inputs: a, b, c. Returns x. See list_bundles for related 'education' calculators. |
| calculate_unit_price | Compare unit prices across packages to find the best deal. Use for shopping. Inputs: list of {price, quantity, unit}. Returns price per unit and best buy. See list_bundles for related 'education' calculators. |
| calculate_tip | Compute restaurant tip and per-person split. Use for shared meals. Inputs: bill, tip %, people count. Returns tip, total, per-person share. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_brevet_points | Estimate French Brevet (DNB) score from grades and continuous-control marks. Use for collège students forecasting their result. Inputs: grades by subject, continuous control. Returns total points and mention. See list_bundles for... |
| calculate_bac_points | Estimate French Baccalauréat final score from grades and coefficients. Use to track lycée results before official scores. Inputs: grades by subject with coefficients. Returns weighted average and mention. See list_bundles for related... |
| calculate_ects_credits | Estimate ECTS credit workload (1 ECTS ≈ 25-30 study hours). Use for university course planning across Europe. Inputs: course hours, credits target. Returns expected workload and balance. See list_bundles for related 'education' calculators. |
| calculate_parcoursup_points | Estimate Parcoursup admission score from bac + lycée grades. Use for French university candidates. Inputs: grades and coefficients per subject. Returns estimated score. See list_bundles for related 'education' calculators. |
| calculate_life_path_numerology | Calculate numerology life path number from birth date. Returns: {life_path_number, meaning}. See list_bundles for related 'fun' calculators. |
| calculate_chinese_zodiac | Determine Chinese zodiac animal and element from birth year. Returns: {full_sign}. See list_bundles for related 'fun' calculators. |
| calculate_biorhythm | Compute physical, emotional, and intellectual biorhythm cycles for a date based on birth date. Use for self-tracking enthusiasts (pseudoscience). Inputs: birth date, target date. Returns 3 cycle values (-100 to +100) and zone. See... |
| calculate_age_in_units | Calculate exact age in multiple units from birth date. Returns: {weeks, hours, minutes, seconds}. See list_bundles for related 'fun' calculators. |
| calculate_day_of_week | Find the day of the week for any date (Zeller's congruence). Use for historical dates or birthday checks. Inputs: day, month, year. Returns weekday name. See list_bundles for related 'fun' calculators. |
| calculate_concrete_mix | Compute cement, sand, gravel, and water for a given concrete volume (NF DTU 21). Use for construction projects. Inputs: volume m³, mix ratio. Returns weights of each ingredient. See list_bundles for related 'construction' calculators. |
| calculate_paint_quantity | Compute paint liters needed for a surface with chosen number of coats. Use for painting projects. Inputs: surface m², coats, paint coverage m²/L. Returns liters and number of cans. See list_bundles for related 'construction' calculators. |
| calculate_tile_quantity | Compute tiles needed including a waste margin (default 10%). Use for floor or wall tiling. Inputs: surface m², tile size, waste %. Returns tile count and surface ordered. See list_bundles for related 'construction' calculators. |
| calculate_slope | Compute slope as percentage, angle in degrees, and ratio. Use for ramps, roofs, or terrain analysis. Inputs: rise, run. Returns slope% and angle°. See list_bundles for related 'construction' calculators. |
| calculate_staircase | Calculate staircase dimensions using Blondel formula. Returns: {step_height_cm, giron_cm, blondel, blondel_ok}. See list_bundles for related 'construction' calculators. |
| calculate_insulation_r | Compute thermal resistance R = thickness/lambda. Use for insulation specification (RT2020/RE2020). Inputs: thickness m, conductivity λ W/m·K. Returns R-value m²·K/W. See list_bundles for related 'construction' calculators. |
| calculate_brick_count | Compute bricks or blocks needed for a wall including waste margin. Use for masonry projects. Inputs: wall dimensions, brick size, waste %. Returns brick count and pallets. See list_bundles for related 'construction' calculators. |
| calculate_gravel_quantity | Compute gravel volume (m³) and weight (tonnes) for a surface and depth. Use for paths, foundations, drainage. Inputs: area, depth, gravel density. Returns volume and weight. See list_bundles for related 'construction' calculators. |
| calculate_cable_section | Compute electrical cable cross-section (mm²) per NF C 15-100. Use for residential wiring. Inputs: power kW, voltage, length, max voltage drop %. Returns required section. See list_bundles for related 'construction' calculators. |
| calculate_wallpaper | Compute wallpaper rolls needed for a room with pattern repeat factor. Use for renovation budget. Inputs: room dimensions, roll size, pattern repeat. Returns roll count. See list_bundles for related 'construction' calculators. |
| calculate_ohms_law | Compute Ohm's law: V=I·R. Solve for any of V, I, R given the other two. Use for electronics. Inputs: any 2 of (V volts, I amps, R ohms). Returns the third. See list_bundles for related 'science' calculators. |
| calculate_force | Compute force using Newton's second law F=m·a. Use for physics problems. Inputs: mass kg, acceleration m/s². Returns force in newtons. See list_bundles for related 'science' calculators. |
| calculate_speed_of_sound | Compute speed of sound in air at a given temperature. Use for physics or audio engineering. Formula: c=331.3+0.606·T_C. Inputs: temperature °C. Returns speed in m/s. See list_bundles for related 'science' calculators. |
| calculate_dilution | Compute dilution C1·V1=C2·V2. Solve for any unknown. Use for chemistry, lab work, pharmacy. Inputs: any 3 of (C1, V1, C2, V2). Returns the fourth. See list_bundles for related 'science' calculators. |
| calculate_ph | Compute pH from H+ concentration or vice versa. Use for chemistry or aquarium care. Formula: pH=-log10[H+]. Inputs: pH or [H+] mol/L. Returns the missing value and acidity class. See list_bundles for related 'science' calculators. |
| calculate_electrical_power | Compute electrical power for single or three-phase circuits. Use for electrical engineering. Inputs: voltage, current, phase, power factor. Returns power kW and apparent power kVA. See list_bundles for related 'science' calculators. |
| calculate_density | Compute density, mass, or volume given the other two. ρ=m/V. Use for materials, chemistry, fluid dynamics. Inputs: any 2 of (mass, volume, density). Returns the third. See list_bundles for related 'science' calculators. |
| calculate_radioactive_decay | Compute remaining quantity after radioactive decay. Use for physics or carbon dating. Formula: N=N0·(0.5)^(t/half-life). Inputs: initial qty, half-life, elapsed time. Returns remaining qty. See list_bundles for related 'science' calculators. |
| calculate_fuel_cost | Compute fuel cost for a journey. Use for trip budgeting or company expense. Inputs: distance km, consumption L/100km, fuel price €/L. Returns total cost and L used. See list_bundles for related 'auto-transport' calculators. |
| calculate_braking_distance | Compute reaction + braking distance by road condition (dry/wet/icy). Use for driver safety education. Inputs: speed km/h, reaction time s, road type. Returns total stopping distance m. See list_bundles for related 'auto-transport' calculators. |
| calculate_electricity_cost | Compute electricity cost for an appliance. Use for energy budgeting. Inputs: power W, daily usage hours, kWh price. Returns daily/monthly/yearly cost. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_rent_ratio | Compute the rent-to-income ratio. Use to assess housing affordability (rule of thumb: keep under 33%). Inputs: monthly rent, monthly gross income. Returns rent ratio % and verdict. See list_bundles for related 'immobilier' calculators. |
| calculate_recipe_scaling | Scale recipe ingredients up or down by a factor or new servings count. Use for cooking adjustments. Inputs: ingredients list, original servings, new servings. Returns scaled ingredient list. See list_bundles for related 'cuisine' calculators. |
| calculate_pool_volume | Compute swimming pool water volume in m³ and liters. Use for pool maintenance dosing. Inputs: shape, dimensions. Returns volume m³ and L. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_carbon_footprint | Estimate annual personal carbon footprint (tCO₂e). Use for sustainability awareness. Inputs: housing, transport, diet, lifestyle. Returns total emissions and breakdown. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_tip_worldwide | Compute restaurant tip following local custom (US 18-22%, FR included, JP no tip, etc.). Use when traveling. Inputs: bill, country. Returns recommended tip and total. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_curtain_width | Compute total curtain width using a fullness factor (1.5-3.0×). Use for window dressing. Inputs: window width m, fullness ratio. Returns total fabric width. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_garden_soil | Compute soil volume (m³) and number of bags needed for a garden bed. Use for gardening. Inputs: area, depth, bag volume. Returns m³ and bag count. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_moving_volume | Estimate moving volume (m³) by home type and contents. Use for moving company quotes. Inputs: home size, rooms, furniture density. Returns m³ and truck size recommendation. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_carpet_flooring | Compute flooring cost including waste margin. Use for renovation budget. Inputs: surface m², product price/m², waste %. Returns total cost and m² to order. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_us_federal_tax | Calculate US federal income tax for 2026 using progressive brackets with standard deduction. Returns: {gross_income, standard_deduction, taxable_income, federal_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for... |
| calculate_us_fica | Calculate US FICA taxes (Social Security + Medicare) employee share for 2026. Returns: {gross_annual, social_security_taxable, social_security_tax, medicare_base_tax, medicare_additional_tax, medicare_total, ...}. See list_bundles for... |
| calculate_us_401k | Calculate US 401(k) contribution, employer match, and total retirement savings. Returns: {annual_salary, employee_contribution, employer_match, total_annual_contribution, catch_up_eligible, max_employee_limit}. See list_bundles for... |
| calculate_us_mortgage | Calculate US mortgage with PMI, property tax, and insurance estimates. Returns: {home_price, down_payment, loan_amount, monthly_pi, monthly_pmi, monthly_property_tax, ...}. See list_bundles for related 'finance-us' calculators. |
| calculate_us_capital_gains | Calculate US capital gains tax — short-term (ordinary rates) or long-term (preferential rates). Returns: {tax, gain_type}. See list_bundles for related 'finance-us' calculators. |
| calculate_us_child_tax_credit | Calculate US Child Tax Credit for 2026 with phase-out based on AGI. Returns: {agi, base_credit, credit_reduction, final_credit}. See list_bundles for related 'finance-us' calculators. |
| calculate_us_student_loan | Calculate US student loan repayment under standard, graduated, or income-driven plans. Returns: {loan_balance}. See list_bundles for related 'finance-us' calculators. |
| calculate_us_paycheck | Estimate US bi-weekly net paycheck after federal/state withholding and FICA. Returns: {annual_salary, fica_biweekly, net_biweekly, net_annual_estimate}. See list_bundles for related 'finance-us' calculators. |
| calculate_us_property_tax | Estimate annual US property tax by state using effective tax rates. Returns: {home_value, effective_rate_pct, annual_property_tax, monthly_property_tax}. See list_bundles for related 'finance-us' calculators. |
| calculate_us_state_tax | Compute US state income tax for a chosen state. Use for paycheck planning across states. Inputs: state, gross income, filing status. Returns state tax due and effective rate. See list_bundles for related 'finance-us' calculators. |
| calculate_uk_income_tax | Calculate UK income tax for 2025/26 using HMRC progressive brackets with personal allowance taper. Returns: {gross_income, personal_allowance, taxable_income, income_tax, effective_rate_pct, marginal_rate_pct}. See list_bundles for... |
| calculate_uk_ni_contributions | Calculate UK National Insurance contributions (Class 1 employee) for 2025/26. Returns: {annual_salary, ni_annual, ni_monthly, effective_rate_pct}. See list_bundles for related 'finance-uk' calculators. |
| calculate_uk_student_loan | Calculate UK student loan repayments based on plan type and salary. Returns: {annual_salary, repayment_rate_pct, annual_repayment, monthly_repayment}. See list_bundles for related 'finance-uk' calculators. |
| calculate_uk_vat | Calculate UK VAT — convert between net (ex-VAT) and gross (inc-VAT) amounts. Returns: {amount_net, amount_gross, vat_amount, vat_rate_pct}. See list_bundles for related 'finance-uk' calculators. |
| calculate_uk_council_tax | Compute UK Council Tax based on property band and local authority rate. Use for UK residents and home buyers. Inputs: band (A-H), local authority. Returns annual and monthly council tax. See list_bundles for related 'finance-uk' calculators. |
| calculate_moroccan_income_tax | Calculate Moroccan income tax (IR) using DGI progressive brackets with family deductions. Returns: {annual_income_mad, taxable_income, income_tax_mad, effective_rate_pct, marginal_rate_pct, brackets}. See list_bundles for related... |
| calculate_moroccan_cnss | Calculate Moroccan CNSS contributions (employee and employer shares). Returns: {gross_monthly_mad, employee, employer, pension_ceiling_mad}. See list_bundles for related 'finance-afrique-quebec' calculators. |
| calculate_moroccan_vat | Compute Moroccan VAT (TVA) — convert between HT and TTC. Use for invoicing in Morocco. Inputs: amount, rate (20/14/10/7), mode (ht/ttc). Returns HT, TTC, tax amount. See list_bundles for related 'finance-afrique-quebec' calculators. |
| calculate_moroccan_profit_foncier | Calculate Moroccan property income tax (profit foncier / revenus fonciers). Returns: {annual_rent_mad, taxable_income, income_tax_mad, effective_rate_pct, marginal_rate_pct}. See list_bundles for related 'finance-afrique-quebec' calculators. |
| calculate_senegalese_income_tax | Calculate Senegalese income tax (IRPP) using DGI progressive brackets in XOF. Returns: {annual_income_xof, income_tax_xof, effective_rate_pct, marginal_rate_pct, brackets}. See list_bundles for related 'finance-afrique-quebec' calculators. |
| calculate_senegalese_css | Calculate Senegalese social contributions (CSS/IPRES) for employee and employer. Returns: {gross_monthly_xof, employee, employer}. See list_bundles for related 'finance-afrique-quebec' calculators. |
| calculate_senegalese_vat | Compute Senegalese VAT (TVA) — 18% standard rate. Use for invoicing in Senegal. Inputs: amount, mode (ht/ttc). Returns HT, TTC, tax amount. See list_bundles for related 'finance-afrique-quebec' calculators. |
| calculate_quebec_income_tax | Calculate Quebec provincial income tax (Revenu Québec) with basic personal amount deduction. Returns: {income_cad, basic_personal_amount, taxable_income, provincial_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for... |
| calculate_canada_federal_tax | Calculate Canadian federal income tax (CRA) with basic personal amount deduction. Returns: {income_cad, basic_personal_amount, taxable_income, federal_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related... |
| calculate_canada_combined_tax | Calculate combined Quebec + federal income tax with the Quebec federal abatement (16.5%). Returns: {income_cad, quebec_provincial_tax, federal_gross_tax, federal_abatement_qc, federal_net_tax, total_combined_tax, ...}. See list_bundles... |
| calculate_canada_rrq | Calculate Quebec Pension Plan (RRQ) contributions for employee. Returns: {gross_annual_cad, rrq_base_earnings, rrq_contribution_tier1, rrq_additional_earnings, rrq_contribution_tier2, total_rrq_contribution, ...}. See list_bundles for... |
| calculate_canada_ei | Calculate Canadian Employment Insurance (EI) premiums for Quebec and non-Quebec residents. Returns: {gross_annual_cad, max_insurable_earnings, insurable_earnings, employee_rate_pct, employee_premium}. See list_bundles for related... |
| calculate_notary_fees | Calculate French notary fees (frais de notaire) for a real estate purchase. Returns: {price, droits_mutation, emoluments_notaire, frais_divers, total_frais, total_pct}. See list_bundles for related 'finance-france' calculators. |
| calculate_inheritance_tax | Calculate French inheritance tax (droits de succession) based on relationship and amount. Returns: {amount, abatement, taxable_base, tax_due, effective_rate_pct, marginal_rate_pct}. See list_bundles for related 'finance-france' calculators. |
| calculate_child_support | Estimate French child support (pension alimentaire) based on income, custody and number of children. Returns: {income, rate_pct, monthly_support, annual_support}. See list_bundles for related 'finance-france' calculators. |
| calculate_capital_gains_property | Compute French property capital gains tax (plus-value immobilière) including duration abatements. Use for sellers of secondary residence. Inputs: purchase price, sale price, years held, work cost. Returns tax due, social charges, net... |
| calculate_auto_entrepreneur | Calculate French auto-entrepreneur (micro-enterprise) net income and social charges. Returns: {social_charges_rate_pct, social_charges, abatement_fiscal_pct, taxable_income_approx, net_before_tax, cfe_estimate_eur}. See list_bundles for... |
| calculate_prime_activite | Estimate French prime d'activité monthly amount (CAF benefit). Use for low-income workers checking eligibility. Inputs: net monthly salary, household composition. Returns estimated benefit and eligibility note. See list_bundles for... |
| calculate_housing_aid | Estimate French housing aid (APL — Aide Personnalisee au Logement). Returns: {rent, rent_ceiling, estimated_apl, note}. |
| calculate_retirement_pension | Estimate French basic retirement pension (retraite de base Assurance Vieillesse). Returns: {average_salary_best25, annual_pension, max_monthly_pension, prorata_pct}. See list_bundles for related 'finance-france' calculators. |
| calculate_severance_pay | Calculate French severance pay for rupture conventionnelle or licenciement. Returns: {monthly_salary, years_first_10, years_above_10, gross_indemnite, note}. See list_bundles for related 'finance-france' calculators. |
| calculate_unemployment_benefit | Estimate French unemployment benefit (ARE — Aide au Retour a l'Emploi). Returns: {daily_ref_salary, daily_are, monthly_are_estimate, min_daily, max_daily_75pct_sjr}. See list_bundles for related 'finance-france' calculators. |
| calculate_portage_salarial | Estimate net income from portage salarial (freelance via umbrella company). Returns: {portage_management_fee_10pct, social_charges_45pct, net_monthly, net_annual_estimate, net_ratio_pct}. See list_bundles for related 'finance-france'... |
| calculate_belgian_income_tax | Calculate Belgian personal income tax (IPP/PB) using 2026 progressive brackets. Returns: {income, tax_free_amount, taxable_base, income_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related 'finance-belgique'... |
| calculate_belgian_salary | Convert Belgian gross monthly salary to net salary (approximation). Returns: {gross_monthly, social_cotisations_13_07pct, special_social_contribution, professional_withholding_tax, net_monthly, net_annual, ...}. See list_bundles for... |
| calculate_belgian_vat | Calculate Belgian VAT — convert between HT and TTC. Returns: {amount_ht, amount_ttc, vat_amount, vat_rate}. See list_bundles for related 'finance-belgique' calculators. |
| calculate_belgian_social_contributions | Calculate Belgian self-employed social contributions (cotisations INASTI). Returns: {annual_income, tier1_up_to_73850_at_20_5pct, tier2_73850_to_108785_at_14_16pct, tier3_above_108785, total_contributions, effective_rate_pct}. See... |
| calculate_cheque_repas | Calculate Belgian meal voucher (cheque-repas / maaltijdcheque) benefit. Returns: {face_value_per_voucher, employer_contribution_per_voucher, employee_contribution_per_voucher, monthly_total_vouchers, monthly_employer_cost,... |
| calculate_belgian_pension | Estimate Belgian retirement pension based on career years and average salary. Use for retirement planning in Belgium. Inputs: years of contribution, average salary, status (employee/self-employed). Returns monthly pension estimate. See... |
| calculate_belgian_car_advantage | Calculate Belgian benefit-in-kind for company car (avantage de toute nature voiture). Returns: {co2_reference, benefit_rate_pct, annual_taxable_benefit, monthly_taxable_benefit, estimated_monthly_tax_impact}. See list_bundles for... |
| calculate_belgian_donation | Compute Belgian donation tax (droits de donation) by region (Bruxelles/Flandre/Wallonie). Use for estate planning in Belgium. Inputs: region, amount, recipient relation. Returns tax due and effective rate. See list_bundles for related... |
| calculate_swiss_income_tax | Calculate Swiss income tax — federal + estimated cantonal tax. Returns: {income, federal_tax, federal_marginal_rate_pct, cantonal_tax_estimate, cantonal_rate_pct, effective_rate_pct, ...}. See list_bundles for related 'finance-suisse'... |
| calculate_swiss_salary | Convert Swiss gross monthly salary to estimated net salary. Returns: {gross_monthly, avs_ai_apg_5_3pct, ac_chomage_1_1pct, lpp_2e_pilier_10pct, lamal_health_fixed, net_monthly, ...}. See list_bundles for related 'finance-suisse' calculators. |
| calculate_swiss_vat | Compute Swiss VAT (TVA/MWST) — convert between net (HT) and gross (TTC). Use for invoicing or expense reimbursements in Switzerland. Inputs: amount, rate (8.1, 3.8, 2.6, 0). Returns HT, TTC, and tax amount. See list_bundles for related... |
| calculate_swiss_lpp | Calculate Swiss occupational pension (LPP / 2e pilier) contributions by age bracket. Returns: {eligible, note}. See list_bundles for related 'finance-suisse' calculators. |
| calculate_swiss_pillar3a | Calculate Swiss pillar 3a tax savings (3e pilier lie). Returns: {annual_contribution, net_cost_after_saving, max_employee_2026, max_self_employed_2026}. See list_bundles for related 'finance-suisse' calculators. |
| calculate_swiss_wealth_tax | Calculate Swiss wealth tax (impot sur la fortune) by canton. Returns: {net_wealth, tax_free_threshold, taxable_wealth, wealth_tax_rate_pct, annual_wealth_tax, note}. See list_bundles for related 'finance-suisse' calculators. |
| calculate_bmi | Calculate Body Mass Index (BMI) and weight category. See list_bundles for related 'sante' calculators. |
| calculate_bmr | Calculate Basal Metabolic Rate using Mifflin-St Jeor equation. Returns: {bmr_kcal}. See list_bundles for related 'sante' calculators. |
| calculate_tdee | Calculate Total Daily Energy Expenditure from BMR and activity level. Returns: {tdee_kcal}. See list_bundles for related 'sante' calculators. |
| calculate_calories_burned | Estimate calories burned during physical activity using MET values. Returns: {calories_burned}. See list_bundles for related 'sante' calculators. |
| calculate_max_heart_rate | Estimate maximum heart rate using standard or age-adjusted formulas. Returns: {max_heart_rate}. See list_bundles for related 'sante' calculators. |
| calculate_heart_rate_zones | Calculate heart rate training zones Z1-Z5, optionally using Karvonen method. See list_bundles for related 'sante' calculators. |
| calculate_ideal_weight | Estimate ideal body weight using Lorentz and Devine formulas. Returns: {lorentz_kg, devine_kg, average_kg}. See list_bundles for related 'sante' calculators. |
| calculate_body_fat | Estimate body fat percentage from BMI, age and sex using Deurenberg equation. Returns: {body_fat_pct}. See list_bundles for related 'sante' calculators. |
| calculate_hydration | Compute recommended daily fluid intake by weight, activity, and weather. Use for athletes and outdoor workers. Inputs: weight kg, activity hours, temperature °C. Returns L/day and electrolyte recommendation. See list_bundles for related... |
| calculate_one_rep_max | Estimate 1 repetition maximum from submaximal lift using Epley, Brzycki and Lombardi formulas. Returns: {epley_1rm, brzycki_1rm, lombardi_1rm, average_1rm}. See list_bundles for related 'sante' calculators. |
| calculate_due_date | Calculate estimated due date using Naegele's rule and return trimester milestone dates |
| calculate_ovulation | Calculate ovulation date and fertile window from last period and cycle length. Returns: {lmp, ovulation_date, fertile_window_start, fertile_window_end, next_period}. See list_bundles for related 'sante' calculators. |
| calculate_blood_alcohol | Estimate blood alcohol content (BAC) using Widmark formula. Returns: {bac_percent, legal_status_fr, estimated_sober_in_hours}. See list_bundles for related 'sante' calculators. |
| calculate_daily_protein | Calculate recommended daily protein intake based on weight and fitness goal. Returns: {rate_g_per_kg, daily_protein_g, calories_from_protein}. See list_bundles for related 'sante' calculators. |
| calculate_waist_hip_ratio | Calculate waist-to-hip ratio and cardiovascular risk level. Returns: {risk_threshold, cardiovascular_risk}. See list_bundles for related 'sante' calculators. |
| calculate_running_pace | Calculate running pace (min/km) and speed (km/h) from distance and time. Returns: {pace_min_per_km, pace_formatted}. See list_bundles for related 'sport' calculators. |
| calculate_vma | Compute VMA (Maximal Aerobic Speed) from a fitness test result. Use for runners building training plans. Inputs: test type (Cooper 12-min, Luc Léger), result. Returns VMA km/h and zones. See list_bundles for related 'sport' calculators. |
| calculate_vo2max | Estimate VO2max from VMA (maximal aerobic speed). Use for runners assessing cardio fitness. Formula: VO2max ≈ VMA × 3.5. Inputs: VMA in km/h. Returns VO2max in mL/kg/min and fitness category. See list_bundles for related 'sport' calculators. |
| calculate_race_prediction | Predict race time for a target distance using Riegel formula. Returns: {predicted_time_minutes, predicted_formatted, predicted_pace_min_km}. See list_bundles for related 'sport' calculators. |
| calculate_speed_distance_time | Solve speed/distance/time — provide any 2 of 3 values to compute the missing one. Returns: {error}. See list_bundles for related 'sport' calculators. |
| calculate_cycling_power | Estimate cycling power output considering gradient, speed and total mass. Returns: {power_watts, watts_per_kg}. See list_bundles for related 'sport' calculators. |
| calculate_swimming_pace | Calculate swimming pace per 100m and SWOLF efficiency estimate. Returns: {pace_per_100m_min, pace_formatted, swolf_estimate}. See list_bundles for related 'sport' calculators. |
| calculate_training_zones_running | Calculate 6 running training zones as speed ranges based on VMA. Returns: {vma_kmh}. See list_bundles for related 'sport' calculators. |
| calculate_marathon_splits | Generate target split times for a marathon, half-marathon, or other race. Use for race-day pacing. Inputs: target finish time, distance km. Returns 5K splits, halfway, and final pace. See list_bundles for related 'sport' calculators. |
| calculate_velo_development | Calculate bicycle development in meters per pedal revolution. Returns: {gear_ratio, development_m, speed_at_90rpm_kmh}. See list_bundles for related 'sport' calculators. |
| calculate_braquet | Compute cycling gear ratio (braquet) and development per pedal turn. Use for road cycling gear analysis. Inputs: chainring teeth, sprocket teeth, wheel diameter mm. Returns ratio and meters per pedal turn. See list_bundles for related... |
| calculate_1rm_table | Generate a full 1RM-to-12RM repetition table from a known lift using Epley formula. Returns: {input_weight, input_reps, estimated_1rm}. See list_bundles for related 'sport' calculators. |
| calculate_days_between | Calculate days, weeks, approximate months and working days between two dates. Returns: {weeks, months_approx, working_days}. See list_bundles for related 'temps-rh' calculators. |
| calculate_working_days | Count working days Mon-Fri between two dates with optional French public holiday exclusion. Returns: {working_days, public_holidays_excluded}. See list_bundles for related 'temps-rh' calculators. |
| calculate_add_hours | Add two time durations and return the total in hours and minutes. See list_bundles for related 'temps-rh' calculators. |
| calculate_overtime_pay_fr | Calculate French overtime pay: first 8h at +25%, beyond 8h at +50% (weekly threshold 35h). Returns: {hours_at_25pct, hours_at_50pct, pay_25pct_zone, pay_50pct_zone, total_overtime_pay, extra_vs_normal}. See list_bundles for related... |
| calculate_night_shift_pay | Calculate night shift pay (21h-6h) with configurable premium percentage. Returns: {night_hourly_rate, total_pay, premium_earned}. See list_bundles for related 'temps-rh' calculators. |
| calculate_age | Calculate exact age in years, months and days from a birth date. Returns: {today, age_years, age_months, age_days, total_days_lived, days_to_next_birthday}. See list_bundles for related 'temps-rh' calculators. |
| calculate_timezone_offset | Compute current UTC offset for a timezone, accounting for DST. Use for scheduling and date math. Inputs: timezone (IANA name). Returns UTC offset and DST status. See list_bundles for related 'temps-rh' calculators. |
| calculate_part_time | Calculate part-time work percentage and optional pro-rata salary. Returns: {percentage, prorata_salary}. See list_bundles for related 'temps-rh' calculators. |
| calculate_retirement_date | Estimate retirement date from birth date and country legal retirement age. Returns: {retirement_age, retirement_date, years_remaining, already_retired, note}. See list_bundles for related 'temps-rh' calculators. |
| calculate_leave_days | Calculate French paid leave (congés payés): 2.5 days/month, max 25 working days/year. Returns: {accrual_per_month, accrued_days, capped_at_max, max_annual_days, days_to_max, months_to_max}. See list_bundles for related 'temps-rh' calculators. |
| calculate_floor_area | Calculate total floor area and Carrez habitable area from a list of rooms. Returns: {rooms, total_area_m2, carrez_area_m2, note}. See list_bundles for related 'construction' calculators. |
| calculate_roof_area | Calculate roof surface area from building footprint and slope angle. Returns: {rafter_length_m, net_roof_area_m2, with_5pct_overhang_m2}. See list_bundles for related 'construction' calculators. |
| calculate_plaster | Calculate plaster volume and weight for a given surface and thickness. Returns: {area_m2, volume_m3, weight_kg, bags_25kg}. See list_bundles for related 'construction' calculators. |
| calculate_beam_load | Calculate max bending moment and shear for a beam under uniform distributed load. Returns: {load_kN_per_m, max_moment_kNm, max_shear_kN, note}. See list_bundles for related 'construction' calculators. |
| calculate_excavation | Compute excavation volume (m³) and truck loads needed for a foundation, pool, or trench. Use for construction. Inputs: length, width, depth (m), bulking factor. Returns m³ to remove and 8m³-truck count. See list_bundles for related... |
| calculate_energy_physics | Calculate kinetic (½mv²), potential (mgh), mass-energy (E=mc²), or work (F·d). Returns: {energy_joules, energy_kj, energy_kwh}. See list_bundles for related 'science' calculators. |
| calculate_ideal_gas | Solve PV=nRT. Provide any 3 of: pressure_pa, volume_m3, moles, temperature_k. R=8.314. Returns: {error}. See list_bundles for related 'science' calculators. |
| calculate_wavelength_frequency | Solve c=λ·f for EM waves. Provide wavelength or frequency. Also returns photon energy E=hf. See list_bundles for related 'science' calculators. |
| calculate_cable_section_electrical | Calculate cable section from power, voltage, distance and max voltage drop. Returns: {current_a, allowed_drop_v, calculated_section_mm2, recommended_mm2}. See list_bundles for related 'science' calculators. |
| calculate_insulation_r_value | Calculate thermal R-value: R = thickness/lambda. Compare with RE2020 targets. Returns: {lambda_w_mk, r_value_m2KW, re2020_targets, walls_ok, roof_ok, floor_ok}. See list_bundles for related 'science' calculators. |
| calculate_car_depreciation | Calculate car residual value: Y1:-25%, Y2:-15%, Y3:-10%, Y4-5:-8%, Y6+:-5%. Returns: {residual_value, total_dep, pct_lost}. See list_bundles for related 'auto-transport' calculators. |
| calculate_fuel_consumption | Calculate fuel consumption in L/100km and MPG from distance and fuel used. Returns: {l_100km, mpg_us, mpg_uk, co2_g_km_petrol}. See list_bundles for related 'auto-transport' calculators. |
| calculate_malus_ecologique | French ecological malus 2026: CO2 g/km based tax on new vehicle registration. Returns: {malus_eur, threshold, max}. See list_bundles for related 'auto-transport' calculators. |
| calculate_puissance_fiscale | French fiscal horsepower CV = (CO2/45) + (P_kW/40)^1.6. Returns: {cv_raw, cv_fiscaux}. See list_bundles for related 'auto-transport' calculators. |
| calculate_insurance_estimate | Estimate annual car insurance from vehicle value, driver age and bonus-malus. Returns: {annual_premium_eur, monthly_eur, note}. See list_bundles for related 'auto-transport' calculators. |
| calculate_water_bill | Compute water bill from cubic meters consumed and tariff bands. Use for household budget. Inputs: m³ consumed, fixed fee, variable rate. Returns total bill. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_salary_comparison_ppp | Compare salaries across countries using PPP (FR=0.79, US=1.0, UK=0.81, DE=0.77, CH=1.36, BE=0.80). Returns: {ppp_from, ppp_to, equivalent, ratio}. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_delivery_cost | Estimate shipping cost from weight, distance and service (standard vs express). Returns: {cost_eur, formula, note}. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_laundry_cost | Calculate weekly and annual laundry cost (electricity + water + detergent). Returns: {per_load_eur, weekly_eur, annual_eur}. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_grocery_unit_comparison | Compare unit prices of grocery items — normalizes g→kg, mL/cL→L. Returns: {best_value, savings_vs_priciest}. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_distance_securite | Calculate safe following distance using the 2-second rule (French highway code). Returns: {safety_distance_2s_m, highway_3s_m, note}. See list_bundles for related 'auto-transport' calculators. |
| calculate_recipe_nutrition | Compute total calories, protein, carbs, fat for a recipe and per serving. Use for meal planning or nutrition labels. Inputs: list of ingredients with grams, servings count. Returns macro breakdown per serving and total. See list_bundles... |
| calculate_baking_conversion | Convert baking measurements between cups, tablespoons, grams, and milliliters for common ingredients. Use for translating recipes across regions. Inputs: ingredient, value, from-unit, to-unit. Returns converted quantity. See... |
| calculate_cooking_time | Estimate cooking time for meat, fish, or vegetables based on weight, method, and doneness. Use for kitchen planning. Inputs: food type, weight g, cooking method (oven/grill/sous-vide), doneness. Returns time min and target internal... |
| calculate_freezer_duration | Return maximum recommended freezer storage duration for a food type. See list_bundles for related 'cuisine' calculators. |
| calculate_caffeine_intake | Track caffeine intake against the safe daily limit (400 mg adult). Use for monitoring coffee/tea/soda consumption. Inputs: list of drinks (type, quantity). Returns total mg, % of limit, time-of-day distribution. See list_bundles for... |
| calculate_alcohol_units | Compute alcohol units (UK) and grams of pure alcohol in a drink. Use for health tracking and limit awareness. Inputs: volume mL, ABV %. Returns UK units, grams of pure alcohol, and standard-drink equivalent. See list_bundles for related... |
| calculate_food_cost_per_serving | Compute food cost per serving from ingredient costs. Use for restaurants, meal-prep services. Inputs: list of ingredients with cost and quantity used, servings. Returns cost per serving and total. See list_bundles for related 'cuisine'... |
| calculate_daily_vitamins | Check daily vitamin and mineral intake against RDA recommendations. Use for nutrition tracking. Inputs: list of foods with quantities. Returns % RDA per nutrient and deficiencies. See list_bundles for related 'cuisine' calculators. |
| calculate_glycemic_load | Calculate glycemic load (GL) per food and total for a meal. Returns: {thresholds}. See list_bundles for related 'cuisine' calculators. |
| calculate_water_hardness | Calculate water hardness in French degrees from calcium and magnesium concentrations. Returns: {thresholds}. See list_bundles for related 'cuisine' calculators. |
| calculate_dog_food | Calculate daily dog food quantity based on weight, age and activity level. Returns: {kcal_per_day}. See list_bundles for related 'animaux' calculators. |
| calculate_cat_food | Calculate daily cat food quantity based on weight, age and lifestyle. Returns: {kcal_per_day}. See list_bundles for related 'animaux' calculators. |
| calculate_pet_age | Convert pet age (dog/cat) to human-equivalent years. Use for pet health monitoring. Inputs: animal type, age years, breed size. Returns human-equivalent age. See list_bundles for related 'animaux' calculators. |
| calculate_aquarium_volume | Compute aquarium water volume in L and US gallons. Use for fishkeeping, dosing, and stocking decisions. Inputs: shape (rectangular/cylindrical/bow-front), L×W×H or radius×height in cm. Returns liters and gallons. See list_bundles for... |
| calculate_pet_medication_dose | Compute veterinary medication dose by pet weight (mg/kg). Use for medication administration. Inputs: weight kg, dose mg/kg. Returns total mg and tablet count. See list_bundles for related 'animaux' calculators. |
| calculate_breeding_due_date | Compute due date for animal breeding given mating date and species gestation period. Use for breeders. Inputs: species (dog/cat/horse/rabbit/cow), mating date. Returns due date and gestation milestones. See list_bundles for related... |
| calculate_pet_bmi | Estimate body condition score proxy (BMI) for dogs and cats. Returns: {thresholds}. See list_bundles for related 'animaux' calculators. |
| calculate_dog_walking_calories | Compute calories burned by dog and human during a walk. Use for pet weight management. Inputs: dog weight, walk duration, pace. Returns calories burned by both. See list_bundles for related 'animaux' calculators. |
| calculate_fabric_yardage | Calculate fabric needed for a garment in meters (includes 10% for pattern matching). Returns: {meters_needed, note}. See list_bundles for related 'textile-mode' calculators. |
| calculate_knitting_yarn | Calculate yarn needed for a knitting project (meters and number of 50g/100m balls). Returns: {meters_of_yarn, balls_50g_100m}. See list_bundles for related 'textile-mode' calculators. |
| calculate_ring_size | Find ring size in EU/US/UK/JP given finger circumference or diameter. Use for jewelry shopping. Inputs: circumference mm or diameter mm. Returns size in EU, US, UK, JP systems. See list_bundles for related 'textile-mode' calculators. |
| calculate_bra_size | Calculate bra size in FR, US or UK system from underbust and bust measurements (cm). Returns: {band_size, size, cup_diff_cm}. See list_bundles for related 'textile-mode' calculators. |
| calculate_hat_size | Calculate hat size in FR/EU, US/UK systems and standard S/M/L/XL from head circumference (cm). Returns: {head_circumference_cm, FR_EU, US_UK, standard_size}. See list_bundles for related 'textile-mode' calculators. |
| calculate_sunrise_sunset | Approximate sunrise and sunset times based on latitude and day of year. Returns: {sunrise_solar_time, sunset_solar_time, day_length_hours}. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_moon_phase | Compute current moon phase and illumination % for any date. Use for astronomy, agriculture, fishing. Inputs: date. Returns phase name, illumination %, age in days. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_distance_to_horizon | Calculate the distance to the horizon from a given height. Returns: {distance_km, distance_miles, distance_nautical_miles}. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_solar_panel_output | Estimate solar panel daily and yearly energy output by location and system size. Use for solar installation sizing. Inputs: kW capacity, latitude, panel orientation, shading %. Returns kWh/day and kWh/year. See list_bundles for related... |
| calculate_rainwater_collection | Estimate annual rainwater collection volume from a roof. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_wind_chill | Calculate the perceived wind chill temperature (Environment Canada formula). Returns: {feels_colder_by_degrees}. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_heat_index | Calculate the apparent temperature (heat index) from temperature and humidity. Returns: {heat_index_c, feels_warmer_by_degrees, risk_level}. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_carbon_sequestration | Estimate CO2 sequestration by trees over their lifetime. Returns: {age_factor, annual_kg_co2_per_tree, annual_kg_co2_total, lifetime_kg_co2, lifetime_tonnes_co2, equivalent_cars_off_road_1yr}. See list_bundles for related... |
| calculate_luggage_weight | Calculate total luggage weight and compare to airline limits (carry-on, economy checked, business checked). Returns: {total_kg, status}. See list_bundles for related 'voyage' calculators. |
| calculate_jet_lag_recovery | Estimate jet lag recovery time based on timezone difference and direction of travel. Returns: {direction, tips}. See list_bundles for related 'voyage' calculators. |
| calculate_travel_budget | Estimate total trip budget by category (transport, accommodation, food, activities). Use for trip planning. Inputs: destination, days, traveler count, comfort level. Returns total and per-day breakdown. See list_bundles for related... |
| calculate_voltage_adapter | Determine voltage adapter and plug type needed for a destination country. Use for international travel with electronics. Inputs: home country, destination, device wattage. Returns adapter type, voltage, plug shape. See list_bundles for... |
| calculate_sun_exposure | Calculate safe sun exposure time based on UV index and Fitzpatrick skin type. Returns: {skin_description, safe_exposure_minutes, with_spf30_minutes, uv_risk_level, recommendations}. See list_bundles for related 'voyage' calculators. |
| calculate_altitude_sickness | Assess altitude sickness risk and recommend acclimatization schedule. Returns: {risk_level, risk_color, recommended_acclimatization_days, symptoms_to_watch, recommendations}. See list_bundles for related 'voyage' calculators. |
| calculate_currency_exchange | Calculate currency exchange with bank margin and show fees lost. Returns: {amount_source, from_rate_vs_usd, to_rate_vs_usd, mid_market_amount, amount_after_margin, fees_lost, ...}. See list_bundles for related 'voyage' calculators. |
| calculate_international_shipping | Estimate international shipping cost and delivery time by carrier and weight. Use for e-commerce or expat shipping. Inputs: from-country, to-country, weight kg, dimensions. Returns cost range and lead time. See list_bundles for related... |
| calculate_time_difference | Compute the difference between two times or dates in seconds, minutes, hours, days. Use for project tracking, age, or scheduling. Inputs: start datetime, end datetime. Returns delta in multiple units. See list_bundles for related... |
| calculate_travel_insurance | Calculate estimated travel insurance cost based on destination, duration, age and activities. Returns: {base_per_day_eur, activity_factor, estimated_premium_eur, coverage_tips}. See list_bundles for related 'voyage' calculators. |
| calculate_rental_yield | Calculate gross and net rental yield for a real estate investment. See list_bundles for related 'immobilier' calculators. |
| calculate_pinel_tax_reduction | Compute French Pinel rental investment tax reduction (rates 2026). Use to evaluate Pinel real estate investment savings. Inputs: investment amount, duration (6/9/12y). Returns total tax reduction and yearly amount. See list_bundles for... |
| calculate_lmnp_deficit | Calculate LMNP (non-professional furnished rental) tax deficit. Returns: {total_deductible, deficit, note}. See list_bundles for related 'immobilier' calculators. |
| calculate_property_tax_fr | Compute French taxe foncière (annual property tax). Use for owners of property in France. Inputs: cadastral rental value (valeur locative), commune rate %. Returns annual tax due. See list_bundles for related 'immobilier' calculators. |
| calculate_real_estate_agency_fees | Calculate French real estate agency fees using sliding scale. Returns: {agency_fees, scale}. See list_bundles for related 'immobilier' calculators. |
| calculate_mortgage_insurance | Calculate mortgage insurance (assurance emprunteur) cost. Returns: {monthly_insurance, annual_insurance, total_insurance}. See list_bundles for related 'immobilier' calculators. |
| calculate_debt_capacity | Calculate maximum loan capacity using French HCSF 35% debt ratio rule. Returns: {max_monthly_payment, max_loan, note}. See list_bundles for related 'immobilier' calculators. |
| calculate_ptz_eligibility | Check French PTZ (zero-rate loan) eligibility and maximum amount. Returns: {income_ceiling, ptz_max_pct_of_operation, note}. See list_bundles for related 'immobilier' calculators. |
| calculate_stamp_duty_uk | Compute UK Stamp Duty Land Tax (SDLT). Use for UK home buyers. Inputs: property price, first-time-buyer flag, second-home flag. Returns SDLT due and effective rate. See list_bundles for related 'finance-uk' calculators. |
| calculate_rental_profitability | Compute net rental profitability after taxes and charges. Use for real estate investment analysis. Inputs: purchase price, monthly rent, charges, vacancy %, tax bracket. Returns net yield % and cash flow. See list_bundles for related... |
| calculate_surface_carrez | Calculate Carrez law surface area (French legal measurement). Returns: {carrez_surface_m2, total_surface_m2, excluded_m2, included_rooms, excluded_rooms, note}. See list_bundles for related 'immobilier' calculators. |
| calculate_dpe_energy_class | Determine French DPE energy class from primary energy consumption. Returns: {note}. See list_bundles for related 'immobilier' calculators. |
| calculate_property_transfer_tax | Compute French property transfer tax (droits de mutation) by department. Use for property buyers. Inputs: property price, department, type (new/old). Returns tax due and effective rate. See list_bundles for related 'immobilier' calculators. |
| calculate_moving_cost_detailed | Estimate detailed moving cost based on volume, distance and floor. Returns: {base_cost, total_cost_eur, note}. See list_bundles for related 'immobilier' calculators. |
| calculate_housing_loan_comparison | Compare multiple mortgage offers sorted by total cost. Returns: {offers_count, best_offer, comparison}. See list_bundles for related 'immobilier' calculators. |
| calculate_garden_water_needs | Compute weekly water needs for a garden by area and plant type. Use for irrigation planning. Inputs: garden m², climate, plant mix. Returns L/week and watering frequency. See list_bundles for related 'jardinage' calculators. |
| calculate_fertilizer_npk | Calculate NPK fertilizer quantities needed based on crop type and soil type. Returns: {total_kg}. See list_bundles for related 'jardinage' calculators. |
| calculate_seed_quantity | Calculate the number of seeds needed based on surface area, spacing and germination rate. See list_bundles for related 'jardinage' calculators. |
| calculate_compost_volume | Compute compost volume produced from kitchen and garden waste over a year. Use for compost bin sizing. Inputs: household size, garden size m². Returns L/year and recommended bin volume. See list_bundles for related 'jardinage' calculators. |
| calculate_garden_sunlight_hours | Estimate effective daily sunlight hours for a garden based on latitude, month and orientation. See list_bundles for related 'jardinage' calculators. |
| calculate_lawn_mowing_frequency | Calculate recommended lawn mowing interval based on grass type, season and rainfall. See list_bundles for related 'jardinage' calculators. |
| calculate_harvest_date | Estimate harvest date for vegetables based on sowing date and region. Returns: {harvest_date, days_to_harvest}. See list_bundles for related 'jardinage' calculators. |
| calculate_raised_bed_soil | Compute soil volume needed to fill a raised garden bed. Use for gardening setup. Inputs: length, width, depth (m). Returns soil m³, bag count, mix recommendation (40% compost / 30% topsoil / 30% sand). See list_bundles for related... |
| calculate_depth_of_field | Calculate depth of field, near/far focus limits and hyperfocal distance for a camera lens. Returns: {near_limit_m, far_limit_m, coc_mm}. See list_bundles for related 'photographie' calculators. |
| calculate_exposure_triangle | Calculate the missing exposure value (aperture, shutter speed or ISO) given the other two. Returns: {ev_value, lv_value, shutter_speed_s}. See list_bundles for related 'photographie' calculators. |
| calculate_hyperfocal_distance | Calculate hyperfocal distance and near/far sharp limits for a lens and aperture. See list_bundles for related 'photographie' calculators. |
| calculate_crop_factor | Calculate camera crop factor and equivalent focal length based on sensor width. See list_bundles for related 'photographie' calculators. |
| calculate_print_resolution | Calculate print DPI quality and maximum print size from image pixel dimensions. Returns: {effective_dpi}. See list_bundles for related 'photographie' calculators. |
| calculate_bpm_to_ms | Convert BPM tempo to millisecond delay times for different note values. See list_bundles for related 'musique' calculators. |
| calculate_frequency_note | Calculate the frequency of a musical note based on equal temperament tuning. See list_bundles for related 'musique' calculators. |
| calculate_time_signature_beats | Calculate total beats and duration for a musical passage in bars. Returns: {time_signature}. See list_bundles for related 'musique' calculators. |
| calculate_reverb_predelay | Calculate optimal reverb pre-delay based on room size and musical tempo. See list_bundles for related 'musique' calculators. |
| calculate_string_tension | Calculate guitar or bass string tension in pounds, kilograms and Newtons. See list_bundles for related 'musique' calculators. |
| calculate_crypto_profit_loss | Compute crypto trading profit/loss including fees. Use for crypto investors tracking realized P&L. Inputs: buy price, sell price, quantity, buy fee, sell fee. Returns net P&L, ROI %, break-even price. See list_bundles for related... |
| calculate_mining_profitability | Compute crypto mining profitability after electricity costs. Use for miners evaluating ROI. Inputs: hashrate, power W, kWh price, network difficulty, coin price. Returns daily/monthly net profit. See list_bundles for related 'crypto'... |
| calculate_staking_rewards | Calculate staking rewards with optional compounding for a given APY and duration. Returns: {initial_amount}. See list_bundles for related 'crypto' calculators. |
| calculate_impermanent_loss | Calculate impermanent loss for a DeFi liquidity pool position when price ratio changes. Returns: {value_in_pool_ratio}. See list_bundles for related 'crypto' calculators. |
| calculate_gas_fee_eth | Calculate Ethereum transaction gas fee in ETH and USD. See list_bundles for related 'crypto' calculators. |
| calculate_dollar_cost_average | Calculate DCA portfolio value and performance for recurring crypto investments. See list_bundles for related 'crypto' calculators. |
| calculate_crypto_tax_fr | Calculate French flat tax (30% PFU) on cryptocurrency capital gains at withdrawal. Returns: {gain_ratio}. See list_bundles for related 'crypto' calculators. |
| calculate_portfolio_allocation | Calculate portfolio allocation amounts by percentage for major crypto asset classes. Returns: {allocation_pct, sum_pct}. See list_bundles for related 'crypto' calculators. |
| calculate_dice_probability | Calculate dice roll probability for exact values, minimum or maximum targets. Returns: {probability}. See list_bundles for related 'jeux-probabilites' calculators. |
| calculate_card_draw_probability | Calculate hypergeometric probability of drawing specific cards from a deck. Returns: {odds_one_in}. See list_bundles for related 'jeux-probabilites' calculators. |
| calculate_lottery_odds | Compute the odds of winning a lottery for various prize tiers. Use for awareness, education. Inputs: numbers to pick, total numbers, bonus number config. Returns probability and 1-in-N for each tier. See list_bundles for related... |
| calculate_poker_hand_probability | Compute probability of common poker hands (straight, flush, full house, etc.) given a starting hand. Use for poker strategy. Inputs: hole cards, community cards. Returns probability per hand category. See list_bundles for related... |
| calculate_expected_value_bet | Calculate expected value and profitability of a bet or investment decision. Returns: {lose_probability}. See list_bundles for related 'jeux-probabilites' calculators. |
| calculate_pipe_flow_rate | Calculate water flow rate through a pipe using the Hazen-Williams formula. Returns: {C_coefficient}. See list_bundles for related 'plomberie' calculators. |
| calculate_water_heater_size | Calculate recommended water heater tank size for a household. See list_bundles for related 'plomberie' calculators. |
| calculate_pipe_diameter | Calculate the minimum pipe diameter required for a given flow rate and maximum velocity. See list_bundles for related 'plomberie' calculators. |
| calculate_drain_slope | Compute required drain slope (% and cm/m) to ensure proper water flow per plumbing code. Use for plumbing or roof drainage. Inputs: pipe length, pipe diameter, application. Returns slope % and drop in cm. See list_bundles for related... |
| calculate_water_pressure_loss | Calculate water pressure loss in a pipe circuit including friction and elevation. Returns: {equiv_length_m}. See list_bundles for related 'plomberie' calculators. |
| calculate_lmnp_amortization | Calculate LMNP rental property amortization and annual tax deduction (French tax regime). See list_bundles for related 'immobilier' calculators. |
| calculate_sci_is_vs_ir | Compare SCI taxation under IS (corporate tax) vs IR (income tax). Use for French real-estate investors choosing tax regime. Inputs: rental income, charges, owner tax bracket. Returns net result under each regime. See list_bundles for... |
| calculate_concrete_stairs | Calculate concrete stair dimensions, volume and materials using Blondel's formula. See list_bundles for related 'construction' calculators. |
| calculate_roof_truss | Calculate roof truss dimensions, rafter length and material quantities for a pitched roof. See list_bundles for related 'construction' calculators. |
| calculate_body_fat_navy | Calculate body fat percentage using the US Navy circumference method. See list_bundles for related 'sante' calculators. |
| calculate_gpa_french | Convert French school grades (out of 20) to GPA and academic mention. See list_bundles for related 'education' calculators. |
| calculate_parcoursup_score | Estimate Parcoursup weighted score from French baccalaureate component grades. See list_bundles for related 'education' calculators. |
| calculate_fuel_economy_conversion | Convert between fuel economy units: L/100km, mpg-US, mpg-UK, km/L. Use for car comparisons across regions. Inputs: value, from-unit, to-unit. Returns converted economy. See list_bundles for related 'conversions' calculators. |
| calculate_anything | Universal AI-powered calculator — handles any calculation not covered by specialized tools. Requires premium subscription. |
| calculate_rental_yield_gross | Calculate gross rental yield from property price and monthly rent. Returns: {gross_yield_pct}. See list_bundles for related 'immobilier' calculators. |
| calculate_rental_yield_net | Calculate net rental yield after charges and vacancy. Returns: {net_yield_pct, effective_annual_rent, net_income}. See list_bundles for related 'immobilier' calculators. |
| calculate_property_tax_estimate_fr | Estimate French taxe foncière from cadastral value and commune rate. Returns: {estimated_tax_eur, taxable_base, commune_rate_pct}. See list_bundles for related 'immobilier' calculators. |
| calculate_loan_to_value | Compute Loan-to-Value (LTV) ratio for mortgage risk. Use for mortgage application or PMI thresholds. Inputs: loan amount, property value. Returns LTV %, risk level, PMI required y/n. See list_bundles for related 'immobilier' calculators. |
| calculate_debt_service_ratio | Calculate debt-to-income ratio and maximum additional loan capacity. Returns: {ratio_pct, max_monthly_debt_35pct, max_additional_loan_payment, status}. See list_bundles for related 'immobilier' calculators. |
| calculate_notary_fees_detailed | Detailed breakdown of French notary fees by component (taxes, emoluments, debours). Use for property buyers in France. Inputs: property price, type (new/old), department. Returns total fees and per-component breakdown. See list_bundles... |
| calculate_property_capital_gains_fr | Calculate French property capital gains tax after holding-period abatements. Returns: {raw_gain_eur, taxable_ir_eur, taxable_ps_eur, tax_ir_eur, tax_ps_eur, total_tax_eur, ...}. See list_bundles for related 'finance-france' calculators. |
| calculate_rent_increase_irl | Calculate rent increase allowed by French IRL index. Returns: {new_rent_eur, increase_eur}. See list_bundles for related 'finance-france' calculators. |
| calculate_condominium_charges | Compute one owner's share of condominium charges from the budget and tantièmes. Use for syndic or owner verification. Inputs: total budget, tantièmes-owned, total tantièmes. Returns annual and monthly share. See list_bundles for related... |
| calculate_compound_interest_monthly | Compute compound interest with monthly contributions (savings plan). Use for systematic savers. Inputs: initial amount, monthly contribution, annual rate %, years. Returns final value, total contributed, total interest. See list_bundles... |
| calculate_loan_early_repayment | Calculate interest savings from early partial loan repayment. Returns: {months_saved, new_months_remaining, interest_savings_eur, early_repayment_eur}. See list_bundles for related 'finance-universal' calculators. |
| calculate_inflation_adjusted_value | Compute real (inflation-adjusted) purchasing power of a future amount. Use for retirement or savings goal in today's euros. Inputs: nominal future amount, years, average inflation %. Returns real value. See list_bundles for related... |
| calculate_retirement_savings_gap | Project retirement savings vs need and identify shortfall. Use for retirement planning. Inputs: current age, retirement age, current savings, monthly contribution, target income. Returns projected balance and gap. See list_bundles for... |
| calculate_emergency_fund | Compute recommended emergency fund target (3-6 months of expenses). Use for personal financial planning. Inputs: monthly expenses, dependents count, income stability. Returns recommended fund and savings timeline. See list_bundles for... |
| calculate_rule_of_72 | Estimate years to double an investment using the Rule of 72. Returns: {doubling_years_rule72, doubling_years_precise, annual_rate_pct}. See list_bundles for related 'finance-universal' calculators. |
| calculate_present_value | Compute the present value (PV) of a future sum given a discount rate. Use in DCF, NPV, or retirement planning. Inputs: future value, annual rate %, years. Returns PV and discount factor. See list_bundles for related 'finance-universal'... |
| calculate_future_value | Compute the future value (FV) of a present sum at a given interest rate. Use for savings projections. Inputs: present value, annual rate %, years, compounding frequency. Returns FV and total interest. See list_bundles for related... |
| calculate_annuity_payment | Calculate periodic payment amount for a loan or annuity. Returns: {monthly_payment_eur, total_paid_eur, total_interest_eur}. See list_bundles for related 'finance-universal' calculators. |
| calculate_car_lease_vs_buy | Compare leasing vs buying a car over the same period. Use for automotive purchase decisions. Inputs: car price, lease monthly cost, loan rate, ownership years. Returns total costs and recommendation. See list_bundles for related... |
| calculate_tip_split | Calculate tip and per-person amount for a restaurant bill. See list_bundles for related 'vie-quotidienne' calculators. |
| calculate_salary_hourly_to_annual | Convert hourly wage to monthly and annual salary, gross or net. Use for job comparisons. Inputs: hourly rate, hours/week, weeks/year. Returns weekly, monthly, and annual figures. See list_bundles for related 'finance-universal' calculators. |
| calculate_net_worth | Calculate net worth and debt ratio from assets and liabilities. Returns: {net_worth_eur, debt_ratio_pct}. See list_bundles for related 'finance-universal' calculators. |
| calculate_savings_goal | Compute time and monthly contribution needed to reach a savings target. Use for goal-based personal finance. Inputs: target amount, current savings, monthly contribution, annual return %. Returns months to goal. See list_bundles for... |
| calculate_cost_per_use | Compute the cost-per-use of a purchase to evaluate value. Use for buying decisions on durable goods or subscriptions. Inputs: purchase price, expected uses or years. Returns cost per use and break-even use count. See list_bundles for... |
| calculate_pregnancy_due_date | Calculate due date and current gestational week from last period. Returns: {due_date}. See list_bundles for related 'sante' calculators. |
| calculate_water_intake | Compute recommended daily water intake in liters by weight, activity, climate. Use for hydration planning. Inputs: weight kg, activity level, climate (temperate/hot). Returns L/day and glass count. See list_bundles for related 'sante'... |
| calculate_sleep_cycles | Estimate optimal bedtime or wake time based on 90-min sleep cycles. Use for sleep optimization. Inputs: target wake or bedtime. Returns 4-6 cycle recommendations. See list_bundles for related 'sante' calculators. |
| calculate_ideal_weight_range | Compute healthy weight range based on BMI 18.5-24.9. Use for nutrition planning. Inputs: height cm. Returns ideal weight range (min, max) in kg and lb. See list_bundles for related 'sante' calculators. |
| calculate_caffeine_half_life | Calculate remaining caffeine in body after time elapsed. Returns: {hours_to_below_25mg, safe_to_sleep}. See list_bundles for related 'sante' calculators. |
| calculate_sunscreen_reapply | Compute when to reapply sunscreen based on SPF, activity, and water exposure. Use for sun safety. Inputs: SPF, skin type, activity (sweat/swim), UV index. Returns next reapply time. See list_bundles for related 'sante' calculators. |
| calculate_smoking_savings | Compute money and health time saved by quitting smoking. Use for motivation and budgeting. Inputs: cigarettes/day, pack price. Returns daily/monthly/yearly savings and life-time recovered. See list_bundles for related 'sante' calculators. |
| calculate_menstrual_cycle | Calculate next period, fertile window, and ovulation date. Returns: {next_period, ovulation_date, fertile_window_start, fertile_window_end}. See list_bundles for related 'sante' calculators. |
| calculate_reading_time | Estimate reading time for a text based on word count. Returns: {hours_minutes}. See list_bundles for related 'education' calculators. |
| calculate_study_schedule | Generate a study schedule based on exam date and topics. Returns: {total_hours_needed, daily_hours_needed, feasible}. See list_bundles for related 'education' calculators. |
| calculate_grade_needed | Calculate the grade needed on remaining exams to reach target average. Returns: {error}. See list_bundles for related 'education' calculators. |
| calculate_student_loan_repayment | Compute student loan repayment schedule and total interest. Use for graduates planning repayment. Inputs: loan amount, interest rate %, term years. Returns monthly payment, total paid, total interest. See list_bundles for related... |
| calculate_scholarship_comparison | Compare net tuition cost across multiple scholarships and aid packages. Use for college choice. Inputs: list of {tuition, aid} pairs. Returns ranked net costs and best option. See list_bundles for related 'education' calculators. |
| calculate_percentage_change | Compute % change between two values, signed (increase or decrease). Use for performance comparisons, statistics. Inputs: old value, new value. Returns absolute and relative change. See list_bundles for related 'math' calculators. |
| calculate_ratio_simplify | Simplify a ratio to lowest terms using GCD. Use for proportions, mixing, or scaling. Inputs: a, b (and optional c). Returns simplified ratio. See list_bundles for related 'math' calculators. |
| calculate_fraction_operations | Add, subtract, multiply, or divide two fractions and return the simplified result. Use for math homework. Inputs: num1/den1, op, num2/den2. Returns result fraction (lowest terms). See list_bundles for related 'math' calculators. |
| calculate_quadratic_equation | Solve quadratic equation ax²+bx+c=0 with discriminant analysis. Use for math homework or physics problems. Inputs: coefficients a, b, c. Returns roots (real or complex), discriminant, and vertex. See list_bundles for related 'math' calculators. |
| calculate_linear_regression | Calculate linear regression slope and intercept from summary statistics. Returns: {error}. See list_bundles for related 'math' calculators. |
| calculate_currency_cross_rate | Calculate cross exchange rate between two currencies via USD. Returns: {cross_rate_a_to_b, cross_rate_b_to_a}. See list_bundles for related 'conversions' calculators. |
| calculate_shoe_size_convert | Convert shoe size between EU, US (M/W) and UK systems. Returns: {converted_size, eu_size, original_size}. See list_bundles for related 'conversions' calculators. |
| calculate_clothing_size_convert | Convert clothing size between EU, US and UK systems. Returns: {original}. See list_bundles for related 'conversions' calculators. |
| calculate_cooking_conversion | Convert recipe quantities between cups, ml, grams, oz, tbsp, tsp. Use for international recipe translation. Inputs: value, from, to, ingredient (for density). Returns: {original}. See list_bundles for related 'conversions' calculators. |
| calculate_timezone_convert | Convert a time between two UTC offsets accounting for date rollover. Use for international meetings. Inputs: time, from-utc, to-utc. Returns local time and date offset. See list_bundles for related 'conversions' calculators. |
| calculate_number_base_convert | Convert a number between bases 2 (binary), 8 (octal), 10 (decimal), and 16 (hex). Use for programming. Inputs: value, from-base, to-base. Returns converted number. See list_bundles for related 'conversions' calculators. |
| calculate_roman_numeral | Convert between Roman numerals and decimal (1-3999). Returns: {roman_numeral, decimal}. See list_bundles for related 'conversions' calculators. |
| calculate_data_transfer_time | Calculate file transfer time at a given connection speed. See list_bundles for related 'conversions' calculators. |
| calculate_paper_size_convert | Get dimensions (mm, in) of standard paper formats (A0-A10, B0-B10, US Letter, Legal, Tabloid). Use for printing. Inputs: format name. Returns dimensions in mm and inches. See list_bundles for related 'conversions' calculators. |
| calculate_wire_gauge_convert | Convert AWG wire gauge to diameter (mm) and resistance (ohms/m). Use for electrical projects. Inputs: AWG number. Returns diameter, area, resistance, max current. See list_bundles for related 'conversions' calculators. |
| calculate_power_unit_convert | Convert power values between W, kW, HP, BTU/h, cal/s. Returns: {original}. See list_bundles for related 'conversions' calculators. |
| calculate_pressure_convert | Convert pressure between Pa, kPa, MPa, bar, psi, atm, mmHg, mbar, torr. Use for engineering, weather, medicine. Inputs: value, from-unit, to-unit. Returns: {original}. See list_bundles for related 'conversions' calculators. |
| calculate_angle_convert | Convert angles between degrees, radians, gradians and turns. Returns: {original}. See list_bundles for related 'conversions' calculators. |
| calculate_flow_rate_convert | Convert flow rate between L/s, L/min, L/h, m³/h, gpm, cfm. Use for plumbing, HVAC, or industrial design. Inputs: value, from-unit, to-unit. Returns converted flow rate. See list_bundles for related 'conversions' calculators. |
| calculate_density_convert | Convert density between kg/m³, g/cm³, lb/ft³, and lb/gal. Use for engineering, chemistry, fluid mechanics. Inputs: value, from-unit, to-unit. Returns converted density. See list_bundles for related 'conversions' calculators. |
| calculate_flight_distance | Calculate great-circle distance between two coordinates. See list_bundles for related 'voyage' calculators. |
| calculate_passport_validity | Check if passport is valid for travel (6-month rule). Returns: {note}. See list_bundles for related 'voyage' calculators. |
| calculate_exchange_rate_margin | Calculate the margin charged on a currency exchange. Returns: {cost_per_1000_eur, rating}. See list_bundles for related 'voyage' calculators. |
| calculate_time_zone_difference | Compute the time difference (hours) between two timezones. Use for international meetings. Inputs: timezone A, timezone B. Returns delta hours and current local times. See list_bundles for related 'voyage' calculators. |
| calculate_vacation_days_optimal | Compute optimal vacation usage by chaining bridge days with public holidays. Use for HR or worker planning. Inputs: vacation days, country, year. Returns best plan with day count. See list_bundles for related 'voyage' calculators. |
| calculate_travel_insurance_estimate | Estimate travel insurance cost based on trip cost, age, duration, destination. Use for trip planning. Inputs: trip cost, traveler age, days, region. Returns premium estimate. See list_bundles for related 'voyage' calculators. |
| calculate_baking_altitude | Adjust baking recipe for high altitude (less leavening, more liquid, higher temp). Use for mountain cooking. Inputs: altitude m, ingredients. Returns adjusted recipe. See list_bundles for related 'cuisine' calculators. |
| calculate_pet_food_portion | Compute daily food portion (g) for dogs and cats by weight, age, activity. Use for pet feeding. Inputs: animal type, weight, activity, life stage. Returns grams/day and meal split. See list_bundles for related 'animaux' calculators. |
| calculate_dog_pregnancy | Compute dog due date from mating date (gestation 63 days). Use for breeders. Inputs: mating date. Returns due date window and milestone dates. See list_bundles for related 'animaux' calculators. |
| calculate_cat_pregnancy | Compute cat due date from mating date (gestation 63-67 days). Use for breeders. Inputs: mating date. Returns due date window and milestones. See list_bundles for related 'animaux' calculators. |
| calculate_horse_weight | Estimate horse weight using Carroll formula from heart girth and body length. Use for vets, feed dosing. Inputs: heart girth cm, body length cm. Returns weight kg. See list_bundles for related 'animaux' calculators. |
| calculate_fish_tank_heater | Compute aquarium heater wattage needed by tank volume and target temp. Use for aquarium setup. Inputs: tank L, current temp, target temp. Returns wattage W. See list_bundles for related 'animaux' calculators. |
| calculate_pet_vaccination_schedule | Generate upcoming vaccination schedule for a puppy or kitten. Use for pet care planning. Inputs: pet type, birth date, last vaccine date. Returns upcoming dates and vaccines. See list_bundles for related 'animaux' calculators. |
| calculate_fabric_needed | Compute fabric meters needed for a garment by pattern. Use for sewing. Inputs: garment type, size, fabric width. Returns meters of fabric. See list_bundles for related 'textile-mode' calculators. |
| calculate_ring_size_convert | Convert ring sizes between EU, US, UK, and Japan systems. Use for international jewelry shopping. Inputs: size, from-system, to-system. Returns equivalent size. See list_bundles for related 'textile-mode' calculators. |
| calculate_bra_size_convert | Convert bra size between FR, US, UK and EU systems. Returns: {FR, US, UK, EU}. See list_bundles for related 'textile-mode' calculators. |
| calculate_curtain_fabric | Compute fabric meters needed for curtains, including hems and pattern repeat. Use for sewing. Inputs: window dimensions, fullness, pattern repeat. Returns fabric length to buy. See list_bundles for related 'textile-mode' calculators. |
| calculate_dress_alterations | Estimate dress alteration cost and time by alteration type. Use for tailoring or wedding-dress budgeting. Inputs: alterations needed (hem, sides, sleeves), garment type. Returns total cost estimate and time hours. See list_bundles for... |
| calculate_star_magnitude_distance | Calculate star distance from apparent and absolute magnitude. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_telescope_magnification | Compute telescope magnification, exit pupil, and field of view. Use for astronomy hobbyists. Inputs: telescope focal length, eyepiece focal length, eyepiece field of view. Returns magnification and exit pupil. See list_bundles for... |
| calculate_planet_weight | Compute your weight on other planets using gravity ratios. Use for fun, education, sci-fi. Inputs: weight on Earth (kg). Returns weight on each planet of the solar system. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_light_year_distance | Convert astronomical distances between light-years, parsecs, AU, km. Returns: {light_years, parsecs, au, km, original}. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_earthquake_energy | Calculate energy released by an earthquake from its magnitude. Returns: {energy_joules, tnt_equivalent_kg}. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_meat_cooking_time | Compute oven cooking time for meat by cut, weight, and doneness. Use for cooking. Inputs: meat type, weight kg, target doneness. Returns time min and oven temp °C. See list_bundles for related 'cuisine' calculators. |
| calculate_pasta_portions | Calculate dry pasta, water and salt for a given number of people. See list_bundles for related 'cuisine' calculators. |
| calculate_bread_hydration | Compute baker's hydration % = water/flour×100. Use for bread recipe analysis. Inputs: flour g, water g. Returns hydration % and dough type (firm/standard/wet). See list_bundles for related 'cuisine' calculators. |
| calculate_freezer_thaw_time | Estimate thawing time for frozen food by weight and method. Returns: {safe_temp_check, tip}. See list_bundles for related 'cuisine' calculators. |
| calculate_solar_roi | Compute solar panel return on investment over their lifetime. Use for energy audit. Inputs: install cost, kW capacity, location production, kWh price. Returns ROI years and lifetime savings. See list_bundles for related 'energie' calculators. |
| calculate_ev_charging_cost | Compute electric vehicle charging cost and time to full. Use for EV trip planning. Inputs: battery kWh, current %, target %, charger kW, kWh price. Returns cost and hours. See list_bundles for related 'energie' calculators. |
| calculate_heat_pump_cop | Compute heat pump Coefficient of Performance (COP). Use for HVAC efficiency analysis. Inputs: heat output kW, electric input kW. Returns COP and seasonal SCOP estimate. See list_bundles for related 'energie' calculators. |
| calculate_electricity_cost_appliance | Compute annual electricity cost of a household appliance. Use for energy audit and replacement decisions. Inputs: power W, daily hours, kWh price. Returns annual cost and CO₂ kg. See list_bundles for related 'energie' calculators. |
| calculate_led_savings | Compute energy and money saved by switching from incandescent/halogen to LED. Use for energy audit. Inputs: old wattage, LED wattage, daily hours, kWh price, bulbs. Returns yearly savings. See list_bundles for related 'energie' calculators. |
| calculate_sample_size | Compute required sample size for a survey to hit a target margin of error. Use for survey design and A/B testing. Inputs: population, confidence %, margin of error %. Returns minimum sample size. See list_bundles for related 'math' calculators. |
| calculate_z_score | Compute z-score (standardized score) and percentile from a value, mean, and standard deviation. Use for statistics and outlier detection. Returns z, percentile, p-value. See list_bundles for related 'math' calculators. |
| calculate_confidence_interval | Compute confidence interval for a sample mean. Use for statistics, A/B test results, or polling. Inputs: mean, std dev, sample size, confidence (90/95/99%). Returns CI lower/upper bounds. See list_bundles for related 'math' calculators. |
| calculate_percentile_rank | Compute the percentile rank of a value within a dataset. Use for benchmarking scores or salaries. Inputs: value, dataset (list of numbers). Returns percentile (0-100). See list_bundles for related 'math' calculators. |
| calculate_burn_rate | Compute startup monthly burn rate and runway. Use for fundraising or expense control. Inputs: cash on hand, monthly expenses, monthly revenue. Returns burn, runway in months, profitability date. See list_bundles for related... |
| calculate_cac_ltv_ratio | Compute Customer Acquisition Cost vs Lifetime Value ratio. Use for SaaS unit economics analysis (target ≥3.0). Inputs: total CAC, LTV. Returns ratio and health verdict. See list_bundles for related 'finance-universal' calculators. |
| calculate_churn_rate | Compute customer or revenue churn rate over a period. Use for SaaS retention analysis. Inputs: starting customers, churned, period length. Returns churn %, retention %, and annualized rate. See list_bundles for related... |
| calculate_markup_margin | Convert between markup and margin (often confused). Use for pricing decisions or COGS reporting. Inputs: cost and either markup % or margin %. Returns selling price and the other metric. See list_bundles for related 'finance-universal'... |
| calculate_discount_effective | Compute the effective discount when stacking multiple promotions. Use for promo design or shopping comparisons. Inputs: original price, discount % list. Returns final price and effective single-discount equivalent. See list_bundles for... |
| calculate_projectile_motion | Compute projectile trajectory: range, max height, time of flight. Use for physics or ballistics. Inputs: initial velocity, launch angle, height. Returns range, peak, flight time. See list_bundles for related 'science' calculators. |
| calculate_pendulum_period | Compute simple pendulum period T=2π√(L/g). Use for physics homework or clock design. Inputs: length m, gravity m/s² (default 9.81). Returns period in seconds. See list_bundles for related 'science' calculators. |
| calculate_kinetic_energy | Compute kinetic energy KE=½·m·v². Use for physics, vehicle safety analysis. Inputs: mass kg, velocity m/s. Returns kinetic energy in joules. See list_bundles for related 'science' calculators. |
| calculate_wave_properties | Compute wave frequency, wavelength, or period from any two. Formula: c=λ·f. Use for physics or acoustics. Inputs: any 2 of (frequency Hz, wavelength m, speed m/s). Returns missing values. See list_bundles for related 'science' calculators. |
| calculate_buoyancy | Compute buoyancy force, displaced volume, or floating analysis (Archimedes). Use for physics or shipping. Inputs: object mass/volume, fluid density. Returns buoyant force and float/sink verdict. See list_bundles for related 'science'... |
| calculate_solution_dilution | Compute lab solution dilution C1·V1=C2·V2. Use for stock-to-working solution prep. Inputs: stock concentration, target concentration, target volume. Returns stock volume and diluent volume. See list_bundles for related 'science' calculators. |
| calculate_triangle_heron | Compute triangle area from three side lengths using Heron's formula. Use when angles aren't known. Inputs: sides a, b, c. Returns area, perimeter, type (equilateral/isoceles/scalene). See list_bundles for related 'math' calculators. |
| calculate_sphere | Compute sphere volume V=(4/3)πr³ and surface area A=4πr². Use for ball, tank, or astronomy problems. Inputs: radius. Returns volume and area. See list_bundles for related 'math' calculators. |
| calculate_cone | Compute cone volume V=(1/3)πr²h and lateral/total surface area. Use for geometry or container design. Inputs: radius, height. Returns volume and areas. See list_bundles for related 'math' calculators. |
| calculate_regular_polygon | Compute area, perimeter, and apothem of a regular n-gon. Use for geometry or tiling. Inputs: number of sides, side length. Returns full geometric properties. See list_bundles for related 'math' calculators. |
| calculate_distance_2d | Compute Euclidean distance between two 2D points. Use for geometry, mapping. Formula: √((x2−x1)²+(y2−y1)²). Inputs: x1,y1,x2,y2. Returns distance. See list_bundles for related 'math' calculators. |
| calculate_shoe_size | Convert shoe size between EU, US, UK, and Japanese systems. Use for international shopping. Inputs: size, from-system, to-system, gender. Returns equivalent. See list_bundles for related 'conversions' calculators. |
| calculate_exchange_margin | Detect the hidden margin charged by a money exchanger over the mid-market rate. Use to compare currency exchange offers. Inputs: offered rate, mid-market rate. Returns margin %. See list_bundles for related 'voyage' calculators. |
| calculate_dog_age | Convert dog age to human-equivalent years using modern AAHA method. Use for canine health monitoring. Inputs: dog age years, breed size. Returns human-equivalent age. See list_bundles for related 'animaux' calculators. |
| calculate_cat_age | Convert cat age to human-equivalent years (15+9+4×). Use for feline health. Inputs: cat age years. Returns human-equivalent age and life stage. See list_bundles for related 'animaux' calculators. |
| calculate_overtime_fr | Compute French overtime pay (heures supplémentaires) per labor code. Use for HR or employee verification. Inputs: hourly rate, normal hours, overtime hours. Returns gross overtime pay with 25%/50% premiums. See list_bundles for related... |
| calculate_vacation_days_fr | Compute French paid vacation days earned (congés payés). Use for HR planning. Inputs: months worked, contract type. Returns days earned (2.5/month rule) and equivalent in working days. See list_bundles for related 'finance-france' calculators. |
| calculate_employer_cost_fr | Compute total employer cost in France (gross + social charges). Use for hiring budget or freelance vs salary comparison. Inputs: gross salary, status (cadre/non-cadre). Returns employer cost and total charges. See list_bundles for... |
| calculate_hourly_cost | Compute fully-loaded hourly cost-to-company. Use for project pricing or freelance rate. Inputs: monthly salary, social charges %, billable hours/month. Returns true hourly cost. See list_bundles for related 'finance-france' calculators. |
| calculate_maternity_leave_fr | Compute French maternity leave duration and IJSS allowance. Use for HR or expectant parents. Inputs: due date, prior children count, multiple birth. Returns pre/post-birth leave days and allowance estimate. See list_bundles for related... |
| calculate_paint_needed | Compute paint quantity for walls including coats and waste margin. Use for renovation budget. Inputs: room dimensions, coats, openings. Returns paint liters and recommended buying. See list_bundles for related 'construction' calculators. |
| calculate_tile_grout | Compute grout quantity for a tiling job. Use for renovation budget. Inputs: surface m², tile size, joint width. Returns grout kg needed. See list_bundles for related 'construction' calculators. |
| calculate_wallpaper_rolls | Compute wallpaper rolls for a room including pattern repeat and waste. Use for renovation. Inputs: walls m², roll dimensions, pattern repeat. Returns roll count and length needed. See list_bundles for related 'construction' calculators. |
| calculate_lawn_seed | Compute grass seed quantity (kg) for a lawn area at recommended seeding rate. Use for landscaping. Inputs: area m², seed rate g/m². Returns seed kg. See list_bundles for related 'construction' calculators. |
| calculate_pool_chlorine | Compute chlorine dosage (g) for pool maintenance based on volume and target ppm. Use for pool care. Inputs: pool volume m³, target chlorine ppm, current ppm. Returns chlorine grams. See list_bundles for related 'construction' calculators. |
| calculate_gear_ratio | Compute gear ratio and torque/speed multiplication. Use for mechanical engineering, cycling, automotive. Inputs: driver teeth, driven teeth. Returns ratio and torque multiplier. See list_bundles for related 'science' calculators. |
| calculate_spring_constant | Compute spring constant k from Hooke's law F=k·x. Use for physics or mechanical design. Inputs: force N, displacement m. Returns spring constant N/m. See list_bundles for related 'science' calculators. |
| calculate_hydraulic_pressure | Compute hydraulic system pressure P=F/A. Use for hydraulic design. Inputs: force N, area m². Returns pressure in Pa, kPa, bar, psi. See list_bundles for related 'science' calculators. |
| calculate_motor_torque | Compute motor torque from power and RPM. T(Nm)=9550·P(kW)/RPM. Use for mechanical sizing. Inputs: power kW, rpm. Returns torque in N·m and lb-ft. See list_bundles for related 'science' calculators. |
| calculate_pump_power | Compute pump power requirement. P=ρ·g·H·Q/η. Use for fluid system design. Inputs: flow m³/h, head m, fluid density, efficiency. Returns kW. See list_bundles for related 'science' calculators. |
| calculate_shipping_volumetric | Compute volumetric (dimensional) weight for shipping. Carriers bill the higher of actual and dim weight. Inputs: L×W×H cm, divisor (5000 air, 6000 ground). Returns dim weight kg. See list_bundles for related 'finance-universal' calculators. |
| calculate_inventory_eoq | Compute Economic Order Quantity (Wilson formula). Use for supply chain optimization. Inputs: annual demand, order cost, holding cost per unit. Returns EOQ and orders/year. See list_bundles for related 'finance-universal' calculators. |
| calculate_vat_reverse | Reverse-VAT: extract the VAT and net price from a TTC amount. Use to back out tax from a gross invoice. Inputs: TTC amount, VAT rate %. Returns HT, VAT amount. See list_bundles for related 'finance-france' calculators. |
| calculate_inventory_turnover | Compute inventory turnover ratio = COGS / avg inventory. Use for retail efficiency analysis. Inputs: COGS, average inventory value. Returns turnover and days-on-hand. See list_bundles for related 'finance-universal' calculators. |
| calculate_ellipse | Compute ellipse area A=π·a·b and approximate perimeter (Ramanujan). Use for elliptical fields, tracks, or design. Inputs: semi-major a, semi-minor b. Returns area and perimeter. See list_bundles for related 'math' calculators. |
| calculate_distance_3d | Compute Euclidean distance between two 3D points. Use for 3D modeling, physics. Formula: √(Δx²+Δy²+Δz²). Inputs: x1,y1,z1,x2,y2,z2. Returns distance. See list_bundles for related 'math' calculators. |
| calculate_cylinder | Compute cylinder volume V=πr²h and surface area A=2πr(r+h). Use for tanks, pipes, or containers. Inputs: radius, height. Returns volume and areas. See list_bundles for related 'math' calculators. |
| calculate_pyramid | Compute pyramid volume V=(1/3)·base_area·height. Use for geometry or architecture. Inputs: base area, height (and optional slant for surface area). Returns volume and surface area. See list_bundles for related 'math' calculators. |
| calculate_torus | Compute torus volume V=2π²Rr² and surface area. Use for ring-shaped objects (donuts, inner tubes). Inputs: major radius R, minor radius r. Returns volume and area. See list_bundles for related 'math' calculators. |
| calculate_light_year | Convert between light-years and km/miles. Use for astronomy. 1 ly = 9.461×10¹² km. Inputs: value, from, to. Returns converted distance. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_recipe_scale | Scale recipe quantities to a new servings count. Use for adjusting recipes. Inputs: ingredients with quantities, original servings, target servings. Returns adjusted quantities. See list_bundles for related 'cuisine' calculators. |
| calculate_meat_cooking | Compute meat cooking time and target internal temperature by cut and doneness. Use for kitchen prep. Inputs: meat type, weight kg, doneness. Returns oven time and target temp. See list_bundles for related 'cuisine' calculators. |
| calculate_caffeine_clearance | Compute remaining caffeine in body over time using 5-hour half-life. Use for sleep planning. Inputs: caffeine mg, time since intake. Returns remaining mg and clearance forecast. See list_bundles for related 'sante' calculators. |
| calculate_dew_point | Compute dew point temperature using Magnus formula. Use for HVAC, weather, comfort analysis. Inputs: temperature °C, relative humidity %. Returns dew point °C and comfort class. See list_bundles for related 'astronomie-nature' calculators. |
| calculate_sunrise_approx | Estimate sunrise/sunset times for a latitude on a given day of year. Use for astronomy or outdoor planning. Inputs: latitude, day of year. Returns sunrise/sunset hours, daylight duration. See list_bundles for related 'astronomie-nature'... |
| calculate_soil_ph_amendment | Compute lime or sulfur amount to shift soil pH to a target. Use for gardening. Inputs: current pH, target pH, area m². Returns amendment type and kg/m². See list_bundles for related 'astronomie-nature' calculators. |
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