About the BMI Calculator
Calculate your body mass index and see your healthy weight range. This tool is free, works in your browser and needs no sign-up.
How to use the BMI Calculator
Enter your weight in kilograms and your height in centimetres.
Formula used
BMI = weight (kg) ÷ height (m)².
Example
A person who weighs 70 kg and is 175 cm tall has a BMI of about 22.9.
Frequently asked questions
Is the BMI Calculator free to use?
Yes. It is completely free and you can use it as many times as you like.
How accurate is the BMI Calculator?
The calculator uses standard formulas, so the maths is exact. Real life results can differ because of fees, taxes, rounding or personal factors, so treat the answer as an estimate.
Do you store the numbers I enter?
No. All calculations run in your browser. The values you type are not sent to our server.
Disclaimer: results are estimates for information only. They are not financial, medical or professional advice.