Body mass index (BMI) = weight (kg) ÷ height 2 (m)

For example: 70kg (1.75x1.75) = 22.86.

Body mass index (BMI) is a number obtained by dividing the kilograms of weight by the square of the meters of height. It is a widely used international standard to measure the degree of obesity and health. Mainly used for statistical purposes, when we need to compare and analyze the impact of a person's weight on the health of people of different heights, the body mass index value is a neutral and reliable indicator.

Extended data:

Adult body mass index value:

Too light: less than 18.5

Normal: 18.5-23.9

Overweight: 24-27 years old

Obesity: 28-32 years old

Very obese, over 32 years old.

Because of the error, the body mass index can only be used as one of many standards to evaluate the individual's weight and health status.

According to the summary analysis report of China population data in 1990s, the China Obesity Working Group put forward the obesity standard suitable for adults in China for the first time:

Body mass index greater than or equal to 24 is overweight, and greater than or equal to 28 is obese; Male waist circumference is greater than or equal to 85 cm, and female waist circumference is greater than or equal to 80 cm.

Reference link: Baidu Encyclopedia-Body Mass Index Index