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Adult BMI calculator

Calculate body mass index from height and weight. For adults aged 20 and over.

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How it works

BMI is weight in kilograms divided by height in metres squared. For adults aged 20 and over. It does not distinguish muscle from fat or diagnose health.

BMI = kg / m²

Source: CDC: Adult BMI

These tools provide general information, not medical advice. Nutrition estimates are not intended for children, pregnancy, breastfeeding or managing a medical condition.