BMI Calculator

Body Mass Index (BMI) compares your weight with your height. It is a quick screening number for adults. This tool also shows the weight range that matches a healthy BMI for your height.

Please note: BMI is for adults aged 18 and over. It does not measure body fat and is not a medical diagnosis. Speak to a doctor about your health.

How to use this tool

  1. Choose metric (kg and cm) or imperial (pounds and inches).
  2. Enter your weight and your height.
  3. Click Calculate BMI.

Your privacy

This tool works inside your browser. What you type is not uploaded, saved or shared.