What is BMI?
Body Mass Index estimates whether your weight is in a healthy range for your height. It's a quick screening tool, not a diagnosis.
BMI categories
- Under 18.5 — Underweight
- 18.5–24.9 — Normal
- 25–29.9 — Overweight
- 30+ — Obese
Frequently asked questions
Is BMI accurate for everyone?
BMI doesn't account for muscle mass, so very muscular people may read high. Use it as a general guide.
How is BMI calculated?
Metric: weight(kg) ÷ height(m)². Imperial: 703 × weight(lb) ÷ height(in)².