obesity risk test

Obesity Risk Test

By taking the test, you will find out your BMI. You will also find out your obesity risk factors and what your risk is of developing other obesity-related health problems.

See your result in 3 simple steps

Only takes 1 minute

Calculate your BMI

Your body mass index, or BMI, is a calculation based on your height and weight. Find out more about your BMI.





Other health issues

Please tick any health issues that you have been diagnosed with or suspect you may have.

Weight loss goals

Your weight loss goals are important. Which of these goals apply to you?

Thank you for completing the Obesity Risk Test

Your results

Your BMI is


Your BMI classification: Obese III

Your comorbidity risk: Very severe risk of comorbidities

Below 18

your bmi classification


Increased risk of comorbidity

18 - 25

your bmi classification

Normal weight

Low risk of comorbidity

25 - 30

your bmi classification


Increased risk of comorbidity

30 - 35

your bmi classification

Obese I

Moderate risk of comorbidity

35 - 40

your bmi classification

Obese II

Severe risk of comorbidity

40 - 45

your bmi classification

Obese III

Very severe comorbidity risk

BMI can be a useful starting measure to identify your weight classification and your obesity risk factors. It can also tell you whether you’re at risk of other health issues.



BMI 40.0



BMI 24.9



or 28% of your overall bodyweight

Your expected weight loss in the first year

With the most common treatment options


or 3.2% of your overall bodyweight

Lifestyle Changes

3.2 - 6.7kg

or 1.9%1 - 15%2 of your overall bodyweight

Prescription Medication

22 - 37kg

or 30 - 32% of your overall bodyweight13

Weight Loss Surgery

Percentages are based on weight loss averages. Individual results vary.

Your expected weight loss in the first year

With the most common treatment options

Percentages are based on weight loss averages. Individual results vary.

At your BMI, the Australian Obesity Guidelines(9) recommend my target weight loss should be:

No recommendation based on your BMI.

  1. Pilitsi, E. et al. (2019) ‘Pharmacotherapy of obesity: Available medications and drugs under investigation’, Metabolism, 92, pp. 170–192. doi:10.1016/j.metabol.2018.10.010.
  2. Wilding, J.P.H. et al. (2021) ‘Once-weekly pharmacotherapy (sic) in adults with overweight or obesity’, New England Journal of Medicine, 384(11), pp. 989–1002. doi:10.1056/nejmoa2032183.
  3. Common surgeries weight loss average: Sleeve Gastrectomy (30%) and Roux-en-Y Gastric Bypass (32%)

Talk to your doctor about and share these results with them. Sometimes a referral to a specialist for further investigations may be required to confirm how best to manage obesity.

Health issues that could be related to obesity

Your diagnosed or suspected health concerns may be related to your obesity. It’s important to have a chat with your GP about ways to help treat these obesity risk factors.

Discuss these with your GP.

Your weight loss goals

You listed these as your weight loss goals. Making weight loss goals and regularly reviewing them is an important part of your weight loss journey.5


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