How to Calculate a Body Mass Index (BMI)


Published: 10 June 2019

Ausmed Explains... How to Calculate a Body Mass Index (BMI)

Body mass index (BMI) is a measurement used to classify weight.

It is calculated as the ratio of weight in kilograms (kg) divided by height in metres-squared (m2), i.e.:

BMI = WEIGHT (kg) / HEIGHT (m2).

How about calculating your own BMI? Find out what it means by comparing your results to the table in the video.

Learn more at


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Ausmed’s Editorial team is committed to providing high-quality and thoroughly researched content to our readers, free of any commercial bias or conflict of interest. All articles are developed in consultation with healthcare professionals and peer reviewed where necessary, undergoing a yearly review to ensure all healthcare information is kept up to date. See Educator Profile