BMI Calculator
BMI is a quick starting point: it relates weight to height but cannot tell muscle from fat.
Result
24.2 kg/m²
Healthy weight (18.5–24.9)
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How it's calculated
- 1BMI = weight (kg) ÷ height² (m).
- 2WHO adult categories: below 18.5 underweight, 18.5–24.9 healthy, 25–29.9 overweight, 30 and above obesity.
- 3It is more meaningful alongside waist size or waist-to-hip ratio.
Frequently asked questions
Is BMI accurate for athletes?
Muscular people can have a high BMI because muscle counts as weight. Body fat percentage is more informative then.
Does it apply to children?
No. Children and teens use age- and sex-specific percentile charts.
Are the limits different for older adults?
WHO limits apply to all adults, but age-related muscle loss can make BMI alone misleading.
Sources
This tool produces an estimate and is not a medical diagnosis. Talk to a doctor about health decisions.