Body Composition Analyzer
Enter your measurements to estimate your body fat percentage and get personalized health recommendations.
Uses the U.S. Navy body fat formula. Estimates within 3-5% of DEXA scan accuracy.
How This Works
This tool uses the U.S. Navy body fat estimation method, which calculates body fat percentage from basic circumference measurements. It's the same formula used by the Department of Defense for fitness assessments.
Accuracy: Circumference formulas are estimates and can differ from DEXA by several percentage points, especially when measurements are inconsistent. Use the trend rather than treating one result as a diagnosis.
How to measure: Use a flexible tape measure. Measure your neck just below the larynx (Adam's apple). Measure your waist at the navel level, standing relaxed (don't suck in). Women should also measure hips at the widest point.
Body Fat Percentage Categories
| Category | Men | Women |
|---|---|---|
| Essential Fat | 2-5% | 10-13% |
| Athletic | 6-13% | 14-20% |
| Fitness | 14-17% | 21-24% |
| Average | 18-24% | 25-31% |
| Above Average | 25%+ | 32%+ |