Body mass index (BMI) is a measure of body fat based on height and weight. It is used to screen for weight-related health problems such as obesity and malnutrition. BMI is calculated by dividing weight in kilograms by height in meters squared. To convert BMI to pounds, multiply by 703.
BMI is a useful tool for screening for weight-related health problems, but it is important to note that it is not a perfect measure of body fat. It can be misleading for people who are very muscular or have a lot of body fat.