BMI Calculator

Find out whether you're a healthy weight for your height with our BMI calculator

Our Body Mass Index (BMI) calculator is a simple way to find out whether you're a healthy weight for your height. Just enter your age, height and weight and your Body Mass Index (BMI) will be displayed.

The results of your Body Mass Index will be displayed, with a notification of your BMI results:

✓ Underweight

✓ Healthy weight

✓ Overweight

✓ Obese

In addition to this your results will be placed on a BMI scale, so that you can determine if you are at the lower end or higher end of the category.

✓ Red to Amber if underweight: Less than 18.5 BMI

✓ Green if healthy weight: 18.5 to 25 BMI

✓ Amber if overweight: 25 to 29.9 BMI

✓ Red if obese: 30 or more BMI

Despite public health efforts, obesity is on the rise in almost every country and in both adults and children. Prevalence has doubled in most countries over the past 30 years. Researchers also estimated that having a high BMI accounted for 4 million deaths globally, 40% of which occurred in people who were overweight but not yet obese.

Obesity now affects an estimated 5% of all children and 12% of all adults. In all adult age brackets, prevalence was generally higher among women.

Source: The New England Journal of Medicine, 6 July 2017 "Health Effects of Overweight and Obesity in 195 Countries over 25 Years"