Understanding Body Mass Index (BMI) What does BMI mean? BMI is a calculation based on an individual's weight and height. It is calculated by dividing an individual's weight in kilograms by the square of their height in meters (kg/m²).  This simple numerical value is validated by research to estimate body fat levels. How to interpret your BMI score? The World Health Organization (... https://www.freedomfromdiabetes.org/blog/post/body-mass-index-bmi/3957