BMI Calculator
Calculate BMI from height and weight in metric (kg / cm) or imperial (lb / ft+in). Includes WHO category labels.
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22.9
Normal
BMI = weight (kg) / height (m)². Category labels follow the WHO classification.
How to use
- 1Pick your unitsMetric (kg / cm) or Imperial (lb / ft+in).
- 2Set height and weightSliders are easier than typing.
- 3Read your BMIPlus the WHO category.
FAQ
Is BMI a complete health measure?
No — it doesn't distinguish between muscle and fat, doesn't account for distribution, and varies in clinical relevance by population. Treat it as one signal, not a diagnosis.