BMI Calculator

Calculate your Body Mass Index and see what it means for your health.

BMI Categories

BMICategory
Below 18.5Underweight
18.5 – 24.9Normal
25 – 29.9Overweight
30 – 34.9Obese Class I
35+Obese Class II+

BMI is a screening tool, not a diagnostic measure. Consult a healthcare provider for personalized advice.

FAQs

Body Mass Index (BMI) is a measure of body fat based on height and weight. It's a widely used screening tool for weight categories that may lead to health problems, though it has limitations and doesn't directly measure body fat.

For adults: Underweight is below 18.5, Normal weight is 18.5–24.9, Overweight is 25–29.9, and Obese is 30 or above. These ranges may vary slightly by ethnicity and age.

BMI doesn't distinguish between muscle and fat, so muscular athletes may appear overweight. It also doesn't account for age, sex, or where fat is distributed in the body. Waist circumference is a useful complementary measure.