Twisted Peel
BMI is an objective scientific measure of your weight in relation to your height.

Body Mass Index (BMI)

If you want to calculate your own Body Mass Index it's your weight in kilograms divided by the square of your height in metres. If your BMI is between 19 and 25 you're doing okay. If your BMI is more than 25 I recommend taking one foot off the scales when you weigh yourself before recalculating the figure.