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Online-Rechner für den Body-Mass-Index (BMI)

Normal weight, underweight or overweight?

The body mass index (BMI)- is a measure for classifying a person's body weight in relation to their height. However, stature, biological sex and the individual composition of body mass from fat and muscle tissue are not taken into account. Therefore, the BMI only allows a very rough classification and interpretation.

Nevertheless, the BMI can be a valuable help in assessing and evaluating one's own body weight. A BMI below 18 and above 25 is a warning signal. And a BMI below 16 and above 30 is a clear alarm signal.

Check your body weight now with this BMI calculator
Your BMI calculator

For statistical analysis, this information is stored together with your country of origin. Guaranteed completely anonymous. The BMI calculator is valid for adults aged 18 and over.

How heavy are you?
How tall are you?
How old are you?
Your gender

Interpretation of the BMI





acute risk of death



highly underweight
Treatment is recommended


moderate underweight


slight underweight


normal weight

normal weight





obesity degree I

obesity requiring treatment


Obesity degree II


Obesity degree III

In the article on Lose Weight you will find information on how this can be achieved sustainably and effectively.