Health professionals commonly measure Body Mass Index (BMI) to assess whether patients are a healthy weight. It measures weight in relation to height to determine BMI category (NSW Health):

• Underweight: BMI of less than 18.5

• Normal weight: BMI of 18.5 to 24.9

• Overweight: BMI of 25 to 29.9

• Obese: BMI of 30 or higher

 

Insurers also use BMI as part of the application assessment. Some insurers even offer a lifetime discount on your insurance premiums, usually if your BMI is between 18.5 and 28.5 at application.​

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Use our BMI calculator to see how you measure.​