Body mass index BMI= weight/height squared (international unit kg/㎡).
The normal body fat rate of men is about10 ~ 20%, and that of women is about17 ~ 30%. This is the standard value of adult men and women. Women are over 50 years old and men are over 55 years old. The standard value of body fat percentage can be increased by 2%-3% every 5 years old.
Extended data:
Body fat rate refers to the percentage of body fat and weight. In the past, the simplest way to judge whether an individual is fat or thin was to use the ratio of height to weight (that is, BMI, weight divided by the square of height).
However, this method easily ignores the amount of human fat. Therefore, to judge a person's real obesity, besides using BMI as a reference index, it is also necessary to detect the body fat rate, so that the results will be more objective.
Reference: Baidu Encyclopedia-Body Fat Rate