Body Mass Index (BMI) is the measure of an individual's body mass, which is calculated by dividing the weight of a person in kilogram to the square of the person's height in meters (kg/m2). It is used to quantify the tissue mass in an individual, and then categorizing them as underweight, normal weight, overweight, or obese.
Body Mass Index (BMI): How to Calculate And Understand Your Weight
BMI shows if your weight is healthy for your height. It helps kids and adults grow strong, eat well, and stay active with simple steps.