BMI Calculator
Calculate Body Mass Index in metric or imperial units.
Your BMI
22.9
Normal weight
Understanding Body Mass Index
BMI estimates body fat from weight and height: metric BMI is weight in kilograms divided by height in metres squared, and the imperial formula multiplies pounds ÷ inches² by 703. The standard categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30). BMI is a quick screening tool, not a diagnosis — it doesn't account for muscle mass or body composition. The calculation runs entirely in your browser.
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