How is body fat percentage different from a Body Mass Index (BMI) number?
Body Mass Index (BMI) is the standard measure of body fat based on height and weight that applies to both adult men and women. One of the main problems with BMI is that it does not consider muscularity in it’s calculation. For example, bodybuilders typically have obese-level BMI numbers, despite the fact that they usually have very little body fat. Healthy to 120’s Online Body Fat Calculator takes muscularity into consideration. It is, of course, not nearly as accurate as physical measurements like Hydrostatic Weighing, Bioelectrical Impedance Analysis, Skinfold Measurements or Girth Comparisons. But it is online, easy and free. If you feel the number you receive is not correct, please send us your data and tell us why you think it is wrong. We will then use your input to help optimize the heuristic. Enjoy.