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Free Body Fat Percentage Calculator
Estimate your body fat percentage accurately using the U.S. Navy Method. Requires only a tape measure to check your waist, neck, and (for women) hip circumference.
Why Body Fat Matters
Body fat percentage is a much better indicator of fitness than weight alone. It distinguishes between fat mass and lean muscle mass, helping you track real progress.
Body Fat Proficiency Categories (ACE)
| Category | Women | Men |
|---|---|---|
| Essential Fat | 10-13% | 2-5% |
| Athletes | 14-20% | 6-13% |
| Fitness | 21-24% | 14-17% |
| Average | 25-31% | 18-24% |
| Obese | 32%+ | 25%+ |