The Body Mass Index (BMI) is a number calculated from a person's weight and height as an indicator of body fat. While this BMI number is most accurate for sedentary individuals with average muscle mass and bone density, it remains a useful tool for estimating appropriate weight ranges.

To determine your own BMI and healthy weight, follow the instructions below.

NOTE: BMI tables are designed for adults ages 18 and over. Body Mass Index values for younger individuals are computed differently and can be found elsewhere on the web.