About these converters & calculators
These free calculators and converters give you quick, accurate answers for everyday numbers. Work out your age, check your BMI, split a restaurant bill, plan a loan with an EMI schedule, find the difference between two dates, convert units of length, weight and temperature, or turn a number into words for a cheque or invoice.
Each tool explains how its result is calculated, so you can trust the figures. They run in your browser with no sign-up, which makes them handy on a phone at the shop, in the bank or at the table. Results are estimates and are not professional advice.
What you can do
- Unit Converter: Convert length, weight, temperature, speed, area and more.
- Age Calculator: Find your exact age in years, months, days and see your next birthday.
- BMI Calculator: Calculate body mass index and your healthy weight range.
- Percentage Calculator: Solve percent of, percent change, add or subtract percent in seconds.
- EMI Calculator: Calculate loan EMI, total interest and a full repayment schedule.
- Date Difference Calculator: Find the days, weeks, months and years between two dates.
- Number to Words Converter: Turn numbers into words, currency amounts or ordinals.
- Tip Calculator: Work out the tip, the total and each person's share of the bill.