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Work out body mass index from your height and weight, in metric or imperial units, and see the healthy weight range for your height.
Body mass index (BMI) is a quick screening number that compares weight with height. This calculator works in centimetres and kilograms or feet and pounds, and shows the weight range that counts as healthy for your height.
Enter your height and weight to see your BMI and its category: underweight, healthy, overweight or obese. BMI does not measure body fat directly and can mislead for athletes, older adults and during pregnancy, so treat it as a starting point and talk to a doctor about your own health.
Your numbers stay in your browser and are not saved. The tool is free with no sign-up.
Body mass index is weight in kilograms divided by height in metres squared. It is a quick screening number, not a diagnosis.
Below 18.5 is underweight, 18.5 to 24.9 is a healthy weight, 25 to 29.9 is overweight and 30 or above is obese (WHO adult categories).
No. It does not account for muscle, age, sex or ethnicity, and it is not meant for children. Talk to a doctor for personal health advice.
