BMI Calculator
Find your body mass index from your height and weight, see which range it falls in, and the healthy weight for your height.
How to use the BMI Calculator
Enter your height and weight in metric or in feet, inches and pounds. Your BMI is weight in kilograms divided by height in metres squared.
For South Asian adults, WHO experts suggest lower cut-offs (overweight from 23, obese from 25) because health risks start at a lower BMI. Switch between the two scales to compare.
Frequently asked questions
What is a healthy BMI?
18.5 to 24.9 on the standard WHO scale, or 18.5 to 22.9 on the scale advised for Asian adults.
Is BMI accurate for everyone?
No. It does not tell muscle from fat, so it can mislead for athletes, children, pregnant women and older adults. Ask a doctor about your own health.
Related tools
Every tool runs in your browser. Nothing you type or upload is sent to a server.