BMI Calculator

Calculate your Body Mass Index (BMI) and understand what it means for your health

BMI Categories

Underweight

BMI range: Less than 18.5

May indicate malnutrition or other health problems

Normal weight

BMI range: 18.5 to 24.9

Generally good overall health

Overweight

BMI range: 25.0 to 29.9

May lead to health problems

Obese

BMI range: 30.0 or greater

Higher risk for serious health problems

About BMI

Body Mass Index (BMI) is a simple measure that uses your height and weight to work out if your weight is healthy. The BMI calculation divides an adult's weight in kilograms by their height in metres squared.

While BMI is a useful measurement for most people, it has some limitations:

  • It may not be accurate for athletes or people with high muscle mass
  • The normal range may not be suitable for all ethnic groups
  • It is not applicable for children and young people under 18
  • It does not account for where fat is stored in the body

For a more accurate assessment of your health status, consult with a healthcare professional who can take into account other factors such as your age, ethnicity, fitness level, and overall health condition.