BMI Calculator

Calculate your Body Mass Index and get personalized health insights

About BMI Calculator

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in metres squared.

BMI Categories

  • Underweight: BMI less than 18.5
  • Normal weight: BMI 18.5-24.9
  • Overweight: BMI 25-29.9
  • Obese: BMI 30 or greater

Limitations of BMI

While BMI is a useful screening tool, it has limitations. It doesn't distinguish between muscle mass and fat mass, so athletes with high muscle mass may have a high BMI despite being healthy.