BMI Calculator

You can use the Body Mass Index (BMI) to work out if you are underweight, overweight or at an ideal weight for your height. It is a useful tool, but keep in mind that it can be influenced by gender, age and ethnicity, so use it as a guide only.

This calculator can be used for anyone aged 19 years and above.

If you are aged 18 years or younger, you can use a children and teenager calculator to find out whether you are a healthy weight.

The Get Healthy Information and Coaching Service can help you reach your own healthy weight goal.

Talk to a Get Healthy Service Health Coach on 1300 806 258 or start your journey here!

ClassificationBMI
Underweight <18.50
Healthy Weight Range 18.50 - 24.99
Overweight 25.00 - 29.99
Obese 30 or more
Announcement icon

The Get Healthy Service is taking a short break over the festive season.

  • Closed: Saturday 20 December to Saturday 3 January 2026.
  • Reduced hours 8am to 5pm: Monday 15 – Friday 19 December 2025 and Monday 5 – Friday 9 January 2026.
  • No Saturday services: Saturday 6 December 2025 to Saturday 24 January 2026. Returning to normal on Saturday 31 January 2026.

We will be back to normal hours from Monday 12 January 2026. Thank you for your understanding and wishing you a happy holiday season.