BMI Calculator

Body Mass Index (BMI) is calculated by dividing your weight (kg) by your height (m2) and can help to determine your proportion of body fat.

The BMI score you calculate can provide you with a useful measure to compare your score against the BMI scores below which provide an indication as to whether you are within the underweight, healthy weight or overweight category.1


  • A score under 18.5 is considered to be underweight and possible malnourishment
  • A score between 18.5 - 24.9 is considered to within the healthy weight range for young and middle aged adults
  • A score of 25.0 - 29.9 is considered to be within the overweight category
  • A score of 30 or more is considered as to be obese


A quick and easy way to calculate your own BMI is to click on the link below and fill in the required fields. 

BMI Calculator

It is important to note that there is some variability with the use of BMI as this method can not distinguish between muscle and fat mass. Therefore, the BMI calculations are not very accurate for individuals with a physical disability, a large amount of muscle (such as athletes), individuals who are less than 150cm or taller than 190cm and for certain ethnic populations such as for people from Asian and Indian cultures.1