1. Fat rate refers to the proportion of adipose tissue in body composition. Measuring fat rate can better reflect our body's fat level (obesity degree) than simply measuring weight. Fat rate can be measured by special health scale or other methods.

The following are the international standard categories of human body fat content for reference:

2. The body mass index (that is, body mass index, also referred to as body mass index in English) is a number obtained by dividing the kilograms of weight by the square of the meters of height. It is an international standard to measure the degree of fatness and thinness of human body and whether it is healthy or not. Body mass index is a neutral and reliable index. The following are the corresponding evaluations of adult body mass index values for reference only:

Adult body mass index value: too light: lower than18.5; Normal:18.5-23.9; Overweight: 24-27; Obesity: 28-32; Very obese, higher than 32;

Because the body mass index does not take into account a person's fat ratio, a person with an overweight body mass index may not actually be obese. It is more scientific to judge whether you are obese or not.