BMI Calculator
Calculate your Body Mass Index (BMI) with height and weight. Supports both metric and imperial units.
What Is BMI?
Body Mass Index (BMI) is a simple measure based on your height and weight. It's widely used as a quick screening tool to categorize individuals as underweight, normal weight, overweight, or obese. The formula is: BMI = weight (kg) / height (m)².
BMI Limitations
BMI does not distinguish between muscle and fat mass, so very muscular individuals may have a high BMI despite low body fat. It also doesn't account for age, gender, ethnicity, or body composition. BMI should be used as a general guide, not a definitive health diagnosis. Always consult a healthcare professional for personalized health advice.
BMI Categories (WHO)
Underweight: below 18.5. Normal weight: 18.5 to 24.9. Overweight: 25 to 29.9. Obese: 30 and above. These ranges are based on World Health Organization guidelines for adults.