Calculators & converters
Quick answers for everyday calculations.
- Calculator Online calculator with standard and scientific modes, history and memory.
- Percentage calculator Percent of a number, percentage change, increase and decrease.
- Age calculator Find an exact age in years, months and days, and the days left until the next birthday.
- VAT calculator Add or remove VAT with preset rates by country, or any rate you choose.
- Loan calculator Work out the monthly payment, total interest and amortization schedule of a loan.
- Discount calculator Find the sale price and your savings, stack several discounts, or work out a discount from two prices.
- Rule of three calculator Solve a proportion by cross-multiplication, direct or inverse.
- Date calculator Count the days between two dates, or add and subtract days, weeks, months and years.
- Time zone converter See a time in several cities at once and find a meeting hour that suits everyone.
- Unit converter Convert length, weight, temperature, volume, data, pressure, energy and more.
- Currency converter Convert between about 30 currencies with the daily reference rates of the European Central Bank.
- Speed calculator Find speed, distance or time from the other two, with running pace.
- Fuel consumption calculator Trip fuel cost, real consumption from a fill-up, and L/100 km ↔ MPG conversion.
- Compound interest calculator See how savings grow with interest, regular deposits and time.