BMI calculator
Your body mass index and its WHO band, and what BMI can and can’t tell you. Free, nothing leaves your browser.
Your BMI
—BMI
Enter your weight and height to see your BMI.
Fabee counts what you eat by chat, no weighing or searching.
DownloadFor adults 18 and over, not medical advice. Under 18, pregnant or managing a health condition? Ask your doctor.
How it works
BMI is your weight in kilograms divided by your height in metres, squared. The World Health Organization groups adults into bands: under 18.5, 18.5 to 24.9, 25 to 29.9, and 30 and over.
It’s a quick screening number for groups of people, not a verdict on one body. A muscular person can read high, and waist size and fitness say more about health than BMI alone.
Sources: World Health Organization: A healthy lifestyle, WHO recommendations.