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BMI calculator

Calculate your body mass index (BMI) from height and weight. All local in your browser.

BMI
category

FAQ

How is BMI calculated?

BMI = weight (kg) ÷ height² (m). Categories: under 18.5 underweight, 18.5–25 normal, 25–30 overweight, over 30 obese. It's an indicative measure and ignores muscle vs fat.

Is BMI an accurate health measure?

It's indicative. For athletes with high muscle mass it can mislead. Consult a doctor to assess health.