The Body Mass Index (BMI), also referred to as the Quetelet Index, is an index of weight in proportion to body length. The BMI is determined by dividing your body weight in kilograms by your body length in metres and subsequently dividing the outcome once again by your body length.
The BMI provides an estimation of health risks in relation to body weight. Therefore, the BMI does not focus on what is aesthetically attractive. It demonstrates the relationship to the amount of body fat, but its values do not indicate the percentage of body fat.
This BMI indicator will immediately reveal whether you are over weight.
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Waist measurement
You can easily check if you run an increased health risk.
Measure your waist with a tape measure. You should measure this from the bottom of the lowest rib to the top of the pelvis. Do not tighten the tape measure too much.
| Circumference of the waist | ||
| women | 68 cm or less | too light |
| women | between 70 cm and 80 cm | no increased risk |
| women | between 80 and 88 cm | approaching the risk boundary |
| women | 88 cm or more | increased risk |
| men | 79 cm or less | too light |
| men | between 80 cm and 94 cm | no increased risk |
| men | between 94 and 102 cm | approaching the risk boundary |
| men | 102 cm or more | increased risk |
If the middle circumference of a man measures less than 79 cm, he is under weight. For women, this is the case if the middle circumference measures less than 68 cm. These values correspond with a BMI of <18.5.