Body Mass Index (BMI) Calculator

Calculate your BMI from your weight and height at the click of a button. BMI is a measure of body fat, which is used to determine whether you are a healthy weight, under or over weight. Because it takes into account both weight and height, it gives a better indication of whether you are healthy, compared to weight.

Body Mass Index (BMI) Calculator

This tool needs Javascript enabled to run.The formula for calculating your body mass index is:
BMI = weight (kilograms) / (height (metres) * height (metres))

For example:
A man who weighs 85 kilograms and is 1.8 metres tall would have a BMI of
BMI = 85 / (1.8 * 1.8)
BMI = 85 / 3.24
BMI = 26.2

This information will be collected for educational purposes, however it will remain anonymous.

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More information

For more information on obesity, health and social issues, and methods of weight loss, as well as some useful tools, see Obesity and Weight Loss.

For more information on measures of weight and nutrition, including GI, GL, BMI, WC and WHR, as well as some useful tools, see Measures of Nutrition and Weight.