top of page

Calculator menu

Body mass index calculator

Not what you were looking for? 

If we don't have the calculator you need then tell us the details and we'll make it for you.



World Health Organization


The body mass index (BMI) is a useful indicator of nutritional status in adults. BMI is calculated as body weight in kilograms divided by the square of the person’s height in metres (kg/m2). For adults over 20 years old, BMI can be categorised as normal, underweight, pre-obesity (overweight) or obesity.

Last updated


bottom of page