What is BMI?

Body Mass Index (BMI) is a number calculated from a person's weight and height. BMI is a indicator of body thinness or fatness for people when compared to a large population. It provides a relative metric of individuals body composition versus the 'average.' BMI does not measure body fat directly, but research has shown that BMI correlates to direct measures of body fat, like underwater weighing. BMI can be considered an alternative for direct measures of body fat because it is an inexpensive and easy-to-perform method of screening for an individual's weight category.

BMI is used as a screening tool to identify possible weight problems for adults. BMI is can be used to provide guidance to individuals for maintain a healthy lifestyle. Fill in your height and weight below to calculate your BMI and determine where you stand versus the world's population averages.

BMI Calculator