Body Composition
Body Fat Percentage
Forget the common scale. Discover your real composition of lean and fat mass using the scientific US Navy method.
Measurements Needed
Use a flexible tape measure to fill in the data. Accuracy depends on the quality of your measurements.
Your Body Fat Percentage
--%
--
Fat
Lean Mass
Fat Mass
-- kgLean Mass
-- kgWhy measure Body Fat Percentage?
Weight on the scale doesn't tell the whole story. Two people with the same weight and height can look and feel completely different depending on their body composition (muscle to fat ratio).
About the U.S. Navy Method
This method estimates body density using equations based on circumferences. While not as precise as a DEXA scan or hydrostatic weighing, it is considered the most reliable home method, with an acceptable margin of error of 3-4% when measurements are taken correctly.
Body Fat Categories (General Reference)
| Category | Men | Women |
|---|---|---|
| Essential Fat | 2-5% | 10-13% |
| Athletes | 6-13% | 14-20% |
| Fitness | 14-17% | 21-24% |
| Acceptable | 18-24% | 25-31% |
| Obesity | 25%+ | 32%+ |