What do the BMI categories mean?

WHO adult ranges are underweight below 18.5, healthy weight 18.5–24.9, overweight 25–29.9, and obesity 30 and above.

Is BMI a complete health measure?

No. BMI does not account for muscle mass, bone density, age, or sex. Use it as a rough screen, not a diagnosis.

Calculators

Calculate body mass index from metric or imperial measurements and see the WHO category.

BMI

24.2

Share your result

Choose metric or imperial units, enter weight and height, and the calculator applies the standard BMI formula.

Metric: weight (kg) ÷ height (m)². Imperial: (weight (lb) ÷ height (in)²) × 703.

70 kg at 170 cm is a BMI of 24.2, which is in the healthy-weight range.

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