Calculator
BMI Calculator
Body Mass Index compares your weight with your height. It's a quick screening number for adults, not a diagnosis.
Units
Your BMI
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Under 18.518.5–24.925–29.930+
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Good to know
- BMI = weight (kg) ÷ height (m)². Categories follow the WHO adult ranges.
- For people of South Asian origin, India's guidelines treat a BMI of 23 or more as overweight, because health risks start at lower BMI.
- For children and teenagers, BMI is judged against age and sex charts, so these categories don't apply.
- BMI doesn't tell muscle from fat. Talk to a doctor about your health.