Body mass index (BMI) is a tool that is commonly used to determine whether a person is underweight, overweight, or obese. It is calculated by squaring a person’s weight in kilograms and dividing the result by their height in meters squared. For example, a person who weighs 70 kilograms and is 1.75 meters tall would have a BMI of 22.6.
BMI is a useful tool for assessing a person’s overall weight status, but it is important to remember that it is not a perfect measure of health. For example, a muscular person may have a high BMI, but they may not be overweight or obese. Additionally, BMI does not take into account a person’s age or sex, which can also affect their weight status.