How to Calculate BMI Accurately: Ranges, Myths & Examples
BMI (Body Mass Index) = weight(kg) ÷ height(m)². For example, at 1.7m and 65kg, BMI = 65 ÷ 2.89 ≈ 22.5, which falls in the healthy range.
Health ranges
- Below 18.5: underweight
- 18.5–24.9: normal
- 25–29.9: overweight
- 30 and above: obese
Common myths
- Muscular people score higher on BMI but aren't necessarily unhealthy
- BMI doesn't distinguish fat distribution and can't replace body-fat %
- Children and pregnant women need specialized standards
💡 BMI is only a rough screen — combine it with waistline and body-fat % for a fuller picture.