Calculators

Quick, reliable calculators for everyday numbers.

Work out percentages three ways — find a percent of a value, what percent one number is of another, or the percent change between two numbers.

Work out your exact age in years, months and days — plus days to your next birthday.

Calculate your Body Mass Index from height and weight in metric or imperial units, with an instant category and scale.

Work out the tip and split the bill per person in seconds — presets, custom percentages and round-up included.

Find the final price after a discount — or the original price before it — with support for stacked discounts.

Add or remove VAT / sales tax from any price, with the tax amount shown separately and common rate presets.

Count down the days, hours and minutes to any date — and share the link.

Count the days, weeks and months between two dates.

Work out monthly payments and see the full amortization schedule — with optional extra payments to find out how much interest you can save.

See how your savings grow with compound interest over time — add regular contributions and watch the year-by-year breakdown build up.

Estimate your daily calorie needs from your BMR and activity level, with targets for cutting, maintaining or bulking.

Estimate your due date and see how far along you are — privately, in your browser.