Body-mass-Index
Abbreviation BMI
Body mass number which is used for the evaluation of the body weight with respect to the maximum life expectancy or as a way of establishing overweight. The BMI is calculated from the body weight (kg) divided by the square of the height (m2). Alternatively, it can be read off from a nomogram (graphical scale system).The evaluation is influenced by age and sex. Cf. waist-hip ratio.
Classification of the BMI by the World Health Organisation WHO:
18.5 to 24.9 kg/m2: normal weight
25.0 to 29.9 kg/m2: overweight (Class I)
30.0 to 39.9 kg/m2. obesity or marked overweight (Class 2)
more than 40.0 kg/m2: morbid obesity or extreme overweight (Class 3)
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