Online BMI Calculator (Body Mass Index) Australia

The BMI Calculator can be used to estimate the a person’s body mass index. This BMI calculator uses both imperial and metric calculations.

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What is your BMI?

Based on your height and weight, your BMI calculates your body weight. Your BMI is a handy tool to determine a healthy body weight based on your height, even if it does not actually "measure" your percentage of body fat. It is the most frequently utilised diagnostic indication to determine a person's ideal weight based on his height because it is simple to measure and calculate. You can determine if you are underweight, normal weight, overweight, or obese based on your BMI "number." However, it is not suitable to utilise this as the sole or conclusive indication for diagnosis because to the large range of body types, the distribution of muscle and bone mass, etc.

Recall that BMI is not the most accurate indicator of whether your weight falls within a healthy range for your height. It's not a reliable measure of your general health and ignores crucial aspects like age, gender, and body composition (fat, muscle and bone).

The following populations are those for whom BMI is not a reliable indicator:

  • Some ethnic groupings include those who are of Asian or South Asian background as well as those who are Aboriginal or Torres Strait Islander.

  • Those who are expecting.

  • People who are under 20 years old.

  • People with a lot of muscle or athletes.

  • People who suffer from a disorder that alters how much fluid is in their body (for example, heart failure).

Along with your BMI, your waist circumference should also be taken into account. By evaluating the amount of fat carried in your midsection, a waist measurement can aid in risk assessment. However, it has some restrictions. For instance, it is inaccurate in persons who are expecting, in children, and in those who have an enlarged stomach as a result of a medical problem.

You can achieve and keep a healthy weight by engaging in physical activity and adhering to a diet that is heart-healthy.

For more specific advice, you might also want to consult your general practitioner, an accredited practising dietitian, or an Aboriginal and/or Torres Strait Islander health practitioner.

BMI For Adults

Based on BMI readings, this is the recommended body weight for adults by the World Health Organization (WHO). Both men and women must be at least 18 years old to use it. There are differences between the body mass charts for adults and children. This is due to the fact that body mass index accounts for age and development spurts differently.

BMI FOR CHILDREN

The BMI classification for kids under 18 is distinct. When determining Body Mass Index for minors, there is a distinct approach. This results from changes in children's growth and metabolism as they age.