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⚖️ BMI Calculator
WHO adult categories. Not medical advice — just the standard BMI formula.
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FAQ
What formula is BMI?
Weight in kilograms divided by height in metres squared. Imperial is converted to metric first.
Are the categories medical advice?
No. They are the common WHO adult bands. BMI does not measure body fat or health.
Does this work for children?
No. Child BMI uses age- and sex-specific percentiles, which this page does not apply.