Online BMI Calculator
Enter your height and weight to get your BMI and health category per WHO standards, with both metric and imperial units supported
FAQ
BMI (Body Mass Index) is weight in kg divided by height in meters squared. Adult standards: <18.5 underweight, 18.5-24.9 normal, 25-29.9 overweight, β₯30 obese.
BMI is a convenient screening metric but doesn't distinguish muscle from fat, so muscular individuals may be overestimated. Standards differ for children, pregnant women and the elderly - results are for reference only.
Yes. Switch to imperial mode to enter height in feet/inches and weight in pounds; the tool converts automatically using the standard formula.
No. All calculations run locally in your browser and your data never leaves your device.
To avoid typos, height is limited to 50-300cm (1-9 ft) and weight to 2-500kg (4-1100 lb); values outside these ranges are rejected.
Completely free. This is a pure frontend online tool - no registration required, no payment needed, just open and use.
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