BMI Calculator
Body Mass Index in metric or imperial units, with WHO category and your healthy weight range.
Your details
cm
kg
Your BMI
24.5
Healthy weight
Category range
<18.518.5–2525–3030+
Healthy weight range for your height
56.7 – 76.3 kg
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How this is calculated
BMI is weight in kilograms divided by height in metres squared: BMI = kg ÷ m². The WHO categories are: underweight (<18.5), healthy (18.5–24.9), overweight (25–29.9), and obese (≥30).
BMI is a rough screening tool. It doesn't distinguish muscle from fat, so athletes often score as "overweight" despite being lean. It's also less reliable at the extremes of height and for children, pregnant women, and older adults.