Fitness & health
BMI Calculator
BMI is a quick screen of weight for height. It does not know how much of you is muscle, so treat it as one number among several.
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Health, fitness and nutrition content on this site is general information, not medical advice. Talk to a qualified professional about your own situation.
How this is worked out
BMI = weight (kg) ÷ height (m)². WHO bands: under 18.5 underweight, 18.5–24.9 healthy, 25–29.9 overweight, 30+ obesity. Indian guidelines use lower cut-offs because health risks rise at lower BMIs in South Asian populations: 23–24.9 overweight, 25+ obesity.
Questions people ask
Why are the Asian cut-offs lower?
At the same BMI, South Asian adults tend to carry more body fat and have higher rates of type 2 diabetes, so Indian guidelines flag risk earlier.
Is BMI accurate for athletes?
Not very — muscle is dense, so muscular people can score "overweight". Waist size or the body fat calculator adds context.