BMI Calculator
Compute your body mass index in metric or imperial, with category and healthy range.
How this is calculated
BMI = weight (kg) / height² (m²). Imperial values are converted to metric first.
Categories (WHO): Underweight < 18.5, Normal 18.5–24.9, Overweight 25–29.9, Obese ≥ 30.
BMI is a screening number, not a diagnosis. It doesn't distinguish muscle mass from fat.
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