To calculate your BMI select your correct height and weight and let the BMI calculator do the rest.BMI will vary slightly according to gender. A metric version is also available.
If you'd like to calculate your BMI yourself, follow these three steps.
1. Work out your height in metres and multiply the figure by itself 2. Measure your weight in kilograms 3. Divide the weight by the height squared (the answer to Q1)
For example, you might be 1.6m (5ft 3in) tall and weigh 65kg (10st 3lb). The calculation would then be:
1.6 x 1.6 = 2.56. BMI would be 65 divided by 2.56 = 25.39.