BMI Calculator – Body Mass Index in kg and cm

Body Mass Index is the quick screening number that compares your weight to your height. It is not a diagnosis — athletes can misread it — but it is the standard first check doctors use worldwide for underweight, overweight and obesity risk.

The formula

BMI = weight (kg) ÷ height² (m)

FAQ

What BMI range is healthy?

By WHO standards: under 18.5 is underweight, 18.5–24.9 normal, 25–29.9 overweight, 30+ obese.

Is BMI accurate for muscular people?

Not perfectly — muscle weighs more than fat, so athletes can show "overweight" BMIs with low body fat. Waist circumference is a useful cross-check.

Does BMI differ for Indians?

Indian health guidelines often use lower action thresholds (23 for overweight) because South Asians carry more visceral fat at the same BMI.

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