Body mass index, or BMI, is a new term to most people. However, it is the
measurement of choice for many physicians and researchers studying obesity. BMI
uses a mathematical formula that takes into account both a person's height and
weight. BMI equals a person's weight in kilograms divided by height in meters
squared. (BMI=kg/m2). A metric version is
also available.
The Calculator (Imperial - a stone is equivalent to 14lbs)
If you would like to calculate your BMI manually 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 (5 feet 3 inches) tall and weigh 65kg (10 stone). The calculation
would then be:
1.6 x 1.6 = 2.56. BMI would be 65 divided by 2.56 = 25.39.