How do I calculate my BMI?

Enter your weight and height, choose metric or imperial units and press Calculate. BMI = weight (kg) ÷ height (m)².

What is a normal BMI range?

For adults, a normal BMI range is 18.5 to 24.9.

Adult men and women use the same BMI cut-off points; children use age- and sex-specific percentiles.

WHO & CDC based · 100% free · Private

Calculate your Body Mass Index for men, women and kids in metric or imperial units, and see exactly where you fall on the BMI scale.

Your BMI

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Enter your details and press Calculate to see your result.

Standard WHO adult categories and CDC percentile ranges for children and teens.