Calculators - free online tools

Quick calculators for everyday questions, from working out a percentage to estimating a loan payment. Results are estimates for information only, and they update as you type.

Age Calculator

Find your exact age in years, months and days, and the days until your next birthday.

BMI Calculator

Calculate body mass index from your weight and height in metric or imperial units.

Discount Calculator

Find the sale price and the amount you save after a percentage discount.

Loan Calculator

Estimate the monthly payment, total repaid and total interest for a fixed-rate loan.

Percentage Calculator

Work out a percentage of a number, what percent one number is of another, and percentage change.