BMI calculator

Select Unit:

Your BMI

?
Add your height and weight to calculate your BMI.
Underweight

Being underweight may be a sign of underlying health issues or nutritional deficiencies and can lead to weakened immunity, fragile bones, and fatigue.

Tips
  • Eat frequent, nutrient-dense meals with healthy fats, proteins, and complex carbohydrates.
  • Incorporate strength training to build muscle mass.
  • Consider seeing a healthcare provider to rule out medical causes.

Reference: World Health Organization, 2023

Normal weight

This range is generally associated with a lower risk of chronic disease and good overall health.

Tips
  • Maintain a balanced diet with a variety of fruits, vegetables, lean proteins, and whole grains.
  • Stay physically active for at least 150 minutes per week.
  • Get regular check-ups to monitor blood pressure, cholesterol, and other health markers.

Reference: Australian Government Department of Health, 2021

Overweight

This range may be linked to an increased risk of heart disease, type 2 diabetes, and other conditions, particularly if other risk factors are present.

Tips
  • Focus on portion control and reducing high-calorie, low-nutrient foods.
  • Incorporate more physical activity into your routine—aim for 30–60 minutes most days.
  • Seek support from a dietitian or health professional if needed.
Interested in personalised weight loss treatment?
Take the quiz

Reference: Australian Institute of Health and Welfare, 2023

Obesity Class I

You may be at a higher risk of cardiovascular disease, joint problems, and metabolic syndrome.

Tips
  • Prioritise sustainable lifestyle changes like meal planning, home cooking, and mindful eating.
  • Consider joining a structured weight management program.
  • Discuss long-term strategies with a GP, including potential referrals to specialists.
Interested in personalised weight loss treatment?
Take the quiz

Reference: Australian Institute of Health and Welfare, 2023

Obesity Class II & III

Higher classes of obesity significantly raise the risk for multiple chronic diseases and may reduce life expectancy without intervention.

Tips
  • Combine diet, physical activity, and behavioural changes under medical supervision.
  • Discuss options like pharmacotherapy or bariatric surgery with a healthcare team if appropriate.
  • Focus on achievable, incremental goals to support long-term success.
Interested in personalised weight loss treatment?
Take the quiz

Reference: Healthdirect Australia, 2022

Distribution of BMI, aged 18 and over, 2022

Source: Australian Institute of Health and Welfare

Bar chart illustrating the distribution of Body Mass Index categories among Australian females aged 18 and over in 2022, with categories ranging from underweight to obese.

BMI calculator

Select Unit:

Your BMI

?
Add your height and weight to calculate your BMI.
Underweight

Being underweight may be a sign of underlying health issues or nutritional deficiencies and can lead to weakened immunity, fragile bones, and fatigue.

Tips
  • Eat frequent, nutrient-dense meals with healthy fats, proteins, and complex carbohydrates.
  • Incorporate strength training to build muscle mass.
  • Consider seeing a healthcare provider to rule out medical causes.

Reference: World Health Organization, 2023

Normal weight

This range is generally associated with a lower risk of chronic disease and good overall health.

Tips
  • Maintain a balanced diet with a variety of fruits, vegetables, lean proteins, and whole grains.
  • Stay physically active for at least 150 minutes per week.
  • Get regular check-ups to monitor blood pressure, cholesterol, and other health markers.

Reference: Australian Government Department of Health, 2021

Overweight

This range may be linked to an increased risk of heart disease, type 2 diabetes, and other conditions, particularly if other risk factors are present.

Tips
  • Focus on portion control and reducing high-calorie, low-nutrient foods.
  • Incorporate more physical activity into your routine—aim for 30–60 minutes most days.
  • Seek support from a dietitian or health professional if needed.
Interested in personalised weight loss treatment?
Take the quiz

Reference: Australian Institute of Health and Welfare, 2023

Obesity Class I

You may be at a higher risk of cardiovascular disease, joint problems, and metabolic syndrome.

Tips
  • Prioritise sustainable lifestyle changes like meal planning, home cooking, and mindful eating.
  • Consider joining a structured weight management program.
  • Discuss long-term strategies with a GP, including potential referrals to specialists.
Interested in personalised weight loss treatment?
Take the quiz

Reference: Australian Institute of Health and Welfare, 2023

Obesity Class II & III

Higher classes of obesity significantly raise the risk for multiple chronic diseases and may reduce life expectancy without intervention.

Tips
  • Combine diet, physical activity, and behavioural changes under medical supervision.
  • Discuss options like pharmacotherapy or bariatric surgery with a healthcare team if appropriate.
  • Focus on achievable, incremental goals to support long-term success.
Interested in personalised weight loss treatment?
Take the quiz

Reference: Healthdirect Australia, 2022

Distribution of BMI, aged 18 and over, 2022

Source: Australian Institute of Health and Welfare

Bar chart illustrating the distribution of Body Mass Index categories among Australian females aged 18 and over in 2022, with categories ranging from underweight to obese.

Text when no BMI calculated

Text for normal weight

Text for underweight

Text for overweight

Text for obesity I

Text for obesity II