A BMI of 18.5 to 25 is healthy.
If you have a BMI of more than 25, you are overweight.
Over 30 is obese.
Over 40 is morbidly obese.
To calculate your own BMI, you will need to know your weight in kilos and your height in meters then follow the example below.
1. Multiply your height by itself, eg 1.7x1.7= 2.89.
2. Divide your weight (eg 80kg) by this figure.
3. 80 ÷ 2.89= 27.7
27.7 is the BMI.
