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What's your BMI?

The healthy weight range is based on a measurement known as the body mass index (BMI). This can be determined if you know your weight and your height.



Frame sizes vary and it is difficult for any simple measurement to establish a person's frame. It is more accurate to recommend a weight range, rather than a specific weight for a given height.

To calculate your BMI simply select your correct height and weight and let the BMI calculator do the rest.

Remember that weight is also related to build, and you should make allowances if you are stocky or of heavy build. Your BMI will vary slightly according to gender.


If you're a number-crunching fan and would like to calculate your BMI yourself, just follow these three steps.

Work out your height in metres and multiply the figure by itself.
Measure your weight in kilograms
Divide the weight by the height squared (ie. the answer to Q1). For example, you might be 1.6m (5ft 3in) tall and weigh 65kg (10st). The calculation would then be:


1.6 x 1.6 = 2.56. BMI would be 65 divided by 2.56 = 25.39.