Body Mass Index (BMI)

BMI is a ratio of weight to height that is used to categorize obesity and can reflect body fatness.  BMI is calculated by dividing your weight (in kilograms) by your height (in meters squared). A healthy BMI is 18-25 kg/m2, overweight is defined as BMI of 25-30 kg/m2, and obesity as a BMI>30 kg/m2.