Every calculator and tool on AllCalculs, by category. Use the search box to find one in a second.
Business and e-commerce (13)
- Break-Even Point Calculator
- Debt-to-Equity Ratio Calculator
- Double Declining Balance Depreciation Calculator
- EAN-13 Barcode Generator With Check Digit
- French Micro-Entrepreneur Contributions Calculator (URSSAF)
- Liquidity Ratios Calculator (Current, Quick, Cash)
- Markdown Calculator (Successive Discounts)
- Online Store Profit Calculator
- Profitability Ratios Calculator (ROE, ROA, Margin)
- Sum-of-the-Years’ Digits Depreciation Calculator
- Target Profit Calculator: Units to Sell
- Units of Production Depreciation Calculator
- Volumetric Weight Calculator for Parcels
Cooking calculators (3)
Date and time calculators (24)
- Add or Subtract Days From a Date
- Add or Subtract Time (Hours and Minutes)
- Age Calculator: Exact Age in Years, Months and Days
- Business Days Calculator (Add Working Days)
- Days Between Two Dates Calculator
- French Public Holidays by Year
- Hours and Minutes to Decimal Hours
- Hours Between Two Times Calculator
- Hours to Days Converter
- How Many Days Until Christmas? Countdown
- How Many Days Until Easter? Countdown
- How Many Days Until Halloween?
- How Many Days Until New Year? Countdown
- How Many Days Until Summer?
- How Many Days Until Valentine’s Day?
- Length of Service Calculator
- Military Time Converter (24-Hour Clock)
- Paid Leave Calculator (France)
- Sunrise and Sunset Calculator
- Time Calculator (Add, Subtract, Multiply Durations)
- Time Zone Converter
- Timesheet Calculator (Hours Worked)
- What Day of the Week Was It? Day of Week Calculator
- What Week Is It? Week Number Today
Developer tools (9)
Education calculators (12)
- Age Word Problem Solver
- Average of Fractions Calculator
- Coin Word Problem Solver
- French Baccalaureate Grade Calculator (Bac 2027)
- French Brevet Grade Calculator
- GPA Calculator (4.0 Scale)
- Grade Converter: Out of 20, 10, 100 and Percent
- Lattice Multiplication Calculator
- Long Addition and Subtraction Calculator
- Long Multiplication Calculator
- Multiples Calculator
- Ordering Fractions Calculator
Everyday money calculators (30)
- 50/30/20 Budget Calculator
- Cash Counter: Count Notes and Coins
- Change Due Calculator (Notes and Coins)
- Checkbook and Account Balance Calculator
- Commission Calculator
- Discount Calculator: Sale Price and Savings
- Electricity Cost Calculator for Appliances
- French Car Registration Cost (Carte Grise) 2026
- French Child Support Calculator (Pension Alimentaire)
- French Income Tax Calculator 2026
- French Mileage Allowance Calculator (Barème Kilométrique)
- French Rent Increase Calculator (IRL Index)
- Fuel Cost Calculator for a Trip
- Gross Pay Calculator With Overtime
- Gross to Net Salary by Country
- Gross to Net Salary Calculator (France)
- Hourly to Salary Calculator
- How Much Rent Can I Afford?
- Markup Calculator: Selling Price From Cost
- Payment Plan and Instalment Calculator
- Profit Margin Calculator
- Property Tax Calculator
- Salary Inflation Calculator (Purchasing Power)
- Salary to Hourly Calculator
- Sales Tax Calculator (Add or Remove Tax)
- Simple Interest Calculator
- Split the Bill Calculator
- Tip Calculator: Tip, Total and Split per Person
- Unit Price Calculator: Which Is the Better Deal?
- VAT Calculator: Add or Remove VAT
Everyday tools (9)
Games and random draws (5)
Geometry calculators (33)
- Annulus (Ring) Area Calculator
- Capsule Calculator: Volume and Surface
- Circle Calculator: Area, Circumference, Diameter
- Complementary and Supplementary Angle Calculator
- Cone Calculator: Volume, Surface Area, Slant Height
- Conical Frustum Calculator (Truncated Cone)
- Cylinder Volume Calculator (With Litres)
- Ellipse Calculator: Area, Perimeter, Eccentricity
- Equilateral Triangle Calculator
- Hemisphere Calculator: Volume and Surface Area
- Horizontal Tank Volume Calculator (Fill Level)
- Inverse Trig Calculator (arcsin, arccos, arctan)
- Isosceles Triangle Calculator
- Law of Cosines Calculator
- Law of Sines Calculator
- Parallelogram Calculator: Area, Perimeter, Angle
- Pythagorean Theorem Calculator
- Rectangle Calculator: Area, Perimeter, Diagonal
- Rectangular Prism (Box) Calculator
- Regular Polygon Calculator
- Rhombus Calculator: Area From Diagonals
- Right Triangle Calculator: Sides, Angles, Area
- Sphere Volume and Surface Area Calculator
- Square Calculator: Side, Diagonal, Area, Perimeter
- Square Pyramid Calculator: Volume and Surface Area
- Stadium Shape Calculator (Rounded Rectangle)
- Trapezoid Area Calculator
- Triangle Area Calculator (Base and Height or 3 Sides)
- Triangle Third Angle Calculator
- Triangular Prism Volume Calculator
- Trig Function Grapher (sin, cos, tan)
- Trigonometric Functions Calculator (sin, cos, tan)
- Tube and Pipe Volume Calculator
Health and fitness calculators (22)
- Blood Alcohol Content (BAC) Calculator
- BMI Calculator (Body Mass Index)
- BMR Calculator (Basal Metabolic Rate)
- Body Fat Calculator (US Navy Method)
- Body Surface Area Calculator (BSA)
- Calorie Calculator: Daily Calorie Needs
- Calories Burned Calculator by Activity
- Child Height Predictor (Adult Height)
- Conception Date Calculator
- Daily Water Intake Calculator
- Healthy Weight Calculator
- How Many Weeks Pregnant Am I? Calculator
- Lean Body Mass Calculator
- Macro Calculator: Protein, Carbs and Fat
- One Rep Max Calculator (1RM)
- Ovulation Calculator and Fertile Window
- Period Calculator: Next Periods
- Pregnancy Due Date Calculator
- Pregnancy Weight Gain Calculator
- Running Pace Calculator
- Sleep Cycle Calculator: When to Go to Bed
- Target Heart Rate Calculator (Training Zones)
Home and DIY calculators (12)
- Concrete Calculator for a Slab
- Cubic Yards Calculator
- Flooring Calculator: Laminate and Wood Packs
- Gravel, Sand and Topsoil Calculator
- Heating Power Calculator (Watts per Room)
- Paint Calculator: How Much Paint Do I Need?
- Road Base and Crushed Stone Calculator
- Roofing Calculator: Roof Area and Tiles
- Solar Panel Payback Calculator
- Stair Calculator: Steps, Rise and Run
- Tile Calculator: How Many Tiles Do I Need?
- Wallpaper Calculator: How Many Rolls?
Investment calculators (24)
- Annuity Payout Calculator
- Bid-Ask Spread Calculator
- Bond Price and Yield Calculator
- CAGR Calculator (Compound Annual Growth Rate)
- Currency Appreciation and Depreciation Calculator
- Deferred Annuity Calculator
- Depreciation Calculator (Straight-Line, Declining)
- Effective Annual Rate Calculator (APY, EAR)
- Future Value Calculator
- Future Value of an Annuity Calculator
- FVIF, PVIF, FVIFA, PVIFA Table Calculator
- Nominal Interest Rate Calculator (From APY)
- NPV and IRR Calculator
- Payback Period Calculator
- Periodic Interest Rate Calculator (Annual to Monthly)
- Present and Future Value of Cash Flows
- Present Value Calculator
- Present Value of an Annuity Calculator
- Real Return Calculator (After Inflation)
- Rental Property Depreciation Calculator
- ROI Calculator (Return on Investment)
- Rule of 72 Calculator
- Stock Ratios Calculator (P/E, Dividend Yield)
- Term Deposit (CD) Calculator
Loan calculators (19)
- Amortization Schedule Calculator
- APR Calculator (With Fees)
- Car Lease Calculator
- Car Loan Calculator
- Credit Card Payoff Calculator
- Debt Consolidation Calculator
- Debt Payoff Planner: Snowball or Avalanche
- Debt-to-Income Ratio Calculator
- Down Payment Calculator
- Equal Principal Payment Loan Calculator
- French Usury Rate Checker (Taux d’Usure)
- How Much Can I Borrow? Loan Affordability
- How Much Car Can I Afford? Calculator
- Interest Rate Calculator: Find the Rate of a Loan
- Interest-Only Loan Calculator
- Mortgage Payoff Calculator: Extra Payments
- Refinance Calculator: Is It Worth It?
- Rent vs Buy Calculator
- Total Cost of a Loan Calculator (With Insurance)
Math calculators (69)
- 3D Distance Calculator
- Absolute Difference Calculator
- Absolute Value Calculator
- Arithmetic and Geometric Sequence Calculator
- Aspect Ratio Calculator (16:9, 4:3…)
- Average Calculator: Mean, Median, Sum
- Binary, Hex, Octal and Decimal Converter
- Combinations and Permutations With Repetition
- Compare Fractions Calculator
- Complex Fraction Calculator
- Cubic Equation Solver (ax³ + bx² + cx + d = 0)
- Diamond Problem Solver
- Difference of Two Squares Calculator
- Distance Between Two Points Calculator
- Double Factorial and Multifactorial Calculator
- Equivalent Fractions Calculator
- Euclidean Algorithm Calculator (GCD Steps)
- Even and Odd Permutations Calculator
- Expanded Form and Place Value Calculator
- Exponent Calculator (Powers)
- Factor Calculator (All Divisors)
- Factorial Calculator (n!)
- Fibonacci Sequence Generator
- FOIL Method Calculator
- Fraction Calculator: Add, Subtract, Multiply, Divide
- Fraction, Decimal and Percent Converter
- Fractional Exponents Calculator
- GCD and LCM Calculator
- Golden Ratio Calculator (φ)
- Large Exponents Calculator (Exact)
- Least Common Denominator Calculator
- Logarithm Calculator (log, ln, log₂)
- Logarithmic and Exponential Equation Solver
- Long Division Calculator With Steps
- Matrix Calculator: Multiply, Determinant, Inverse
- Mixed Number and Improper Fraction Converter
- Mixed Number to Decimal and Percent Calculator
- Modulo Calculator (Remainder)
- Multiplication Table Generator
- Nth Root Calculator (4th, 5th Root…)
- Number to Words Converter (Cheque Writing)
- Pascal’s Triangle Generator
- Percent Tolerance Calculator
- Prime Number Checker and Prime Factorization
- Prime Numbers List Generator
- Quadratic Equation Solver (ax² + bx + c = 0)
- Random Number Generator
- Ratio Calculator: Simplify and Scale
- Ratio to Fraction Calculator
- Roman Numerals Converter
- Round to the Nearest Multiple
- Rounding Calculator
- Rule of Three Calculator (Proportions)
- Scientific Calculator Online
- Scientific Notation Converter
- Scientific to Standard Notation Converter
- Significant Figures Calculator (Round and Count)
- Simplify Fractions Calculator
- Simplify Square Roots (Radicals)
- Slope Calculator From Two Points
- Slope-Intercept to Standard Form Calculator
- Solve for x in a Fraction Equation (a/b = c/d)
- Square Root Calculator (and Cube Root)
- Square, Cube and Roots Calculator
- Sum Calculator (Add a List of Numbers)
- Unit Rate Calculator
- Vector Dot Product and Cross Product Calculator
- Vertex Form Calculator (Completing the Square)
- Weighted Average Calculator (Grades With Weights)
PDF and document tools (6)
Percentage calculators (8)
- Add or Subtract a Percentage
- Percent of Total Calculator (Breakdown)
- Percentage Change Calculator (Increase or Decrease)
- Percentage Difference Calculator
- Percentage Points vs Percent Change Calculator
- Reverse Percentage Calculator (Find the Original Value)
- What Is X% of Y? Percentage of a Number
- X Is What Percent of Y? Percentage Calculator
Physics calculators (26)
- Average Velocity Calculator
- Density Calculator (Mass and Volume)
- Dew Point Calculator
- E = mc² Calculator
- Elastic Potential Energy Calculator (Spring)
- Force Calculator (F = m × a)
- Friction Force Calculator
- Gravitational Potential Energy Calculator
- Half-Life Calculator
- Heat Index Calculator
- Hooke’s Law Calculator (F = kx)
- Horsepower Calculator From Torque and RPM
- Ideal Gas Law Calculator (PV = nRT)
- Impulse Calculator (J = F × Δt)
- Kinetic Energy Calculator
- Molar Mass Calculator (Molecular Weight)
- Molarity Calculator
- Momentum Calculator (p = mv)
- Ohm’s Law Calculator (V = I × R)
- Resistor Color Code Calculator
- Speed, Distance and Time Calculator
- Uniform Acceleration Calculator
- Voltage Drop Calculator
- Wavelength and Frequency Calculator
- Wind Chill Calculator (Feels Like Temperature)
- Work and Power Calculator (W = F × d)
Statistics calculators (16)
- Batting Average Calculator
- Combinations and Permutations Calculator (nCr, nPr)
- Confidence Interval Calculator (Mean)
- Descriptive Statistics Calculator (Mean, Median, Mode, Quartiles)
- ERA Calculator (Earned Run Average)
- Odds to Probability Calculator
- P-Value Calculator (z and t)
- Percent Error Calculator
- Percentile Calculator
- Probability Calculator (Two Events)
- Sample Size Calculator for Surveys
- Standard Deviation Calculator
- Stem-and-Leaf Plot Generator
- Vote Percentage Calculator
- WHIP Calculator (Walks + Hits per Inning)
- Z-Score Calculator
Unit converters (26)
- Acceleration Converter (m/s², g)
- Angle Converter: Degrees, Radians, Gradians
- Area Converter: m², ft², Acres, Hectares
- Avoirdupois Weight Converter
- Bra Size Calculator (EU, UK, US, FR)
- Data Size Converter: MB, GB, TB, GiB
- Decimal Degrees to DMS Converter (and Back)
- Density Unit Converter
- Energy Converter: Joules, kWh, Calories, BTU
- Feet and Inches Calculator
- Force Converter (N, kgf, lbf)
- Fuel Economy Converter: L/100 km, MPG, km/L
- Height Converter: cm to Feet and Inches
- Length Converter: Metres, Feet, Inches, Miles
- Momentum Unit Converter
- Power Converter: Watts, kW, Horsepower
- Pressure Converter: Bar, PSI, Pa, atm
- Rankine Temperature Converter
- Shoe Size Converter: EU, UK, US, Brazil, Mexico
- Speed Converter: km/h, mph, m/s, Knots
- Temperature Converter: Celsius, Fahrenheit, Kelvin
- Time Unit Converter: Seconds, Minutes, Hours, Days
- Tire Size Calculator and Comparison
- Troy Ounce Converter (Gold and Silver)
- Volume Converter: Litres, Gallons, Cups, ml
- Weight Converter: Kilograms, Pounds, Ounces
Work, pay and employment (France) (7)
Financial Calculators
About these calculators
This page lists every AllCalculs calculator, grouped by category. Use the search box to find a tool by name or by what you want to calculate.
Every tool is free, works on phone and computer, needs no sign-up and runs in your browser: what you type is not sent to a server. Each page explains the formula, gives a worked example and answers common questions.
Tips for accurate results
- Search by task (“VAT”, “age”, “loan”) rather than by exact title.
- Bookmark the tools you use most.
- Each category page explains what its tools cover.