Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It is an inexpensive and easy screening method for weight categorization that can be used to track your weight-loss progress or assess your risk for certain health conditions. BMI was first developed by Adolphe Quetelet, a Belgian statistician, in 1832.
To calculate BMI in kg and feet, divide your weight in kilograms by the square of your height in meters. For example, if you weigh 70 kg and are 1.75 meters tall, your BMI would be 22.86 kg/m2.