BMI Calculator
Calculate your Body Mass Index (BMI) instantly from your height and weight. Get your weight category (underweight, normal, overweight, obese) and see how far you are from a healthy weight. Supports both metric and imperial units.
Enter your height and weight to calculate your BMI.
* BMI is a general indicator of body size. It is not a substitute for medical advice.
How to Use
Choose your unit system
Select Metric (cm / kg) or Imperial (ft / lbs) depending on the units you prefer.
Enter your height
In metric mode, type your height in centimetres. In imperial mode, enter feet and inches separately.
Enter your weight
Type your weight in kilograms (metric) or pounds (imperial).
Read your results
Your BMI value and weight category appear instantly. You can also see how much you would need to gain or lose to reach a BMI of 22, the standard reference weight.