BMI Calculator

Calculate your Body Mass Index with health recommendations. Supports metric and imperial units.

Your BMI
24.2
Normal Weight
Underweight
< 18.5
Normal
18.5 - 24.9
Overweight
25 - 29.9
Obese
>= 30
Ideal Weight Range53.5 - 72.0 kg
CategoryNormal Weight
Recommendation
Great! Maintain your healthy lifestyle with balanced diet and exercise.

Understanding BMI

What is BMI?
Body Mass Index (BMI) = weight(kg) / height(m)^2. It is a screening tool, not a diagnostic measure.
Limitations
BMI does not account for muscle mass, bone density, age, or body composition. Athletes may have high BMI but low body fat.
BMI for Children
Children's BMI is age and sex-specific. Use CDC growth charts for pediatric BMI percentiles.
Waist Circumference
Combine BMI with waist measurement for better health risk assessment. Men > 40 inches, Women > 35 inches indicates higher risk.