All your calculations,
simplified.
Stop struggling with numbers. WebCalcul gives you instant answers for your finances and daily life.
Our calculation tools
Percentage
Sales, discounts, increases... The essential calculation.
Sales Tax Calculator
Calculate the total or find the pre-tax amount (reverse tax) in one click.
Loan / Credit Calculator
Simulate your monthly payments and borrowing capacity.
Compound Interest
See how much your savings will earn you.
Length Converter
Metric, imperial... Convert all lengths.
Digital Storage Converter
GB, TB, MB... Calculate the real capacity of your drives.
Early Repayment Simulator
Calculate your savings by paying off your loan early.
BMI Calculator
Calculate your Body Mass Index and assess your healthy weight.
Days Between Dates Calculator
Calculate the number of days, weeks and months between two dates.
Area Calculator (sq ft / m²)
Calculate the area in sq ft of your rooms, land or spaces.
Fraction ↔ Percentage Converter
Easily convert your percentages to fractions and vice versa.
Investment Simulator
Calculate the net return on your investments after deducting fees.
Gross to Net Salary Calculator
Convert your gross salary to net and vice versa. Calculate contributions.
Mortgage Calculator
Simulate your mortgage with detailed amortization schedule and APR calculation.
Borrowing Capacity Calculator
Calculate how much you can borrow based on your income and the 33% debt ratio.
Tips & Tricks
Improve your finances and daily life.
Bytes, MB, GB: How to Navigate Computer Storage?
Why does your 1 TB hard drive only show 931 GB? Understand the difference between binary and decimal systems with our formulas.
Read articleThe Conversion Guide: From Metric to Imperial
Understanding conversion factors for lengths, weights and temperatures. A practical guide to no longer confuse meters and feet.
Read articleSimulate Your Mortgage Like an Expert
Understand how banks calculate your monthly payments and the real impact of interest rates on your loan.
Read articleFrequently Asked Questions
Everything you need to know about WebCalcul.
Are the calculations on WebCalcul reliable?
Yes, absolutely. All our formulas are based on official mathematical and financial standards (banking standards for loans). Each tool is rigorously tested.
Is the site really free?
WebCalcul is 100% free and accessible without registration. We only generate revenue through advertising to keep the service online.
Do you offer tools for professionals?
Yes, our new Sales Tax calculator allows you to perform reverse tax calculations (find the pre-tax price from the total), essential for invoicing and accounting.