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, underweight, and eating disorders. BMI is calculated by dividing a person’s weight in kilograms by the square of their height in meters.
BMI is a useful tool for assessing weight-related health risks, but it is important to note that it is not a perfect measure. BMI does not take into account factors such as muscle mass, body composition, or frame size. As a result, BMI may not be an accurate measure of body fatness for some people, such as athletes or people with certain medical conditions.