How is Body Mass Index calculated?

For metric units: weight (kg) ÷ [height (m)]². For imperial units: 703 × weight (lbs) ÷ [height (inches)]².

What are the WHO BMI categories?

Underweight (< 18.5), Normal weight (18.5 – 24.9), Overweight (25.0 – 29.9), and Obese (≥ 30.0).

Is my personal health data saved anywhere?

No. All numbers are calculated strictly inside your browser. No health or body metric data ever leaves your device.

How is Body Mass Index calculated?

For metric units: weight (kg) ÷ [height (m)]². For imperial units: 703 × weight (lbs) ÷ [height (inches)]².

What are the WHO BMI categories?

Underweight (< 18.5), Normal weight (18.5 – 24.9), Overweight (25.0 – 29.9), and Obese (≥ 30.0).

Is my personal health data saved anywhere?

No. All numbers are calculated strictly inside your browser. No health or body metric data ever leaves your device.

Free Body Mass Index (BMI) Calculator

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Evaluate your Body Mass Index with official World Health Organization weight categories. Toggle between metric and imperial measurements with instant target weight guidance.

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Disclaimer: This calculator is provided for informational and educational purposes only and is not intended as medical diagnosis, advice, or clinical guidance.

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