BMI Calculator

Calculate your body mass index (BMI) and see your World Health Organization weight category and healthy weight range.

kg
cm
BMI
22.9
WHO category
Normal weight
Healthy weight range for your height
56.7 – 76.3 kg

BMI is a screening measure for adults, not a diagnosis. It does not distinguish muscle from fat.

Formula

BMI = Weight (kg) ÷ Height (m)²

About this calculator

Categories follow the World Health Organization classification for adults: under 18.5 underweight, 18.5 to 24.9 normal, 25 to 29.9 overweight, 30 and above obesity. This is general information, not medical advice.

Amounts are shown without a currency symbol, so the calculator works for any currency: enter all values in the same one.

Frequently asked questions

Is BMI accurate for everyone?

No. It can overstate fatness in muscular people and understate it in older adults. It is not used in the same way for children, teenagers or during pregnancy.

Do the cut-offs differ for Asian populations?

The WHO has suggested lower action points for many Asian populations (23 for increased risk and 27.5 for high risk) because health risks appear at a lower BMI.

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