The Body Mass Index (BMI) is a useful measure for gauging how much fat you have. BMI is an estimate of body fat but does have its own limitations.
- It may overestimate body fat in athletes and others who have a muscular build.
- It may underestimate body fat in older persons and others who have lost muscle.
The tool below can help you determine your own BMI, but know that this is just an estimate of health. Visit the National Institutes of Health for more information on the BMI.