This article is from the Big Folks Health FAQ, by sharon@ecs.ox.ac.uk (Sharon Curtis) with numerous contributions by others.
BMI stands for Body Mass Index and is a common rough measure of
how relatively large a person is (you may come across it in the
literature).
To calculate your own BMI, divide your weight in kilograms by the
square of your height in metres.
1 kilogram is 2.2 pounds
1 inch is 2.54 centimetres
Obesity is usually defined to be a BMI of 30 or more.
 
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