Calculate your body fat percentage using the U.S. Navy Method. Find out your lean mass and fat mass instantly.
Use a tape measure for accuracy.
The US Navy Body Fat Calculator uses a specific set of circumference measurements (neck, waist, and hips) combined with height to estimate your body composition.
It is based on the principle that body fat distribution patterns are consistent and measurable. For example, a wider waist relative to the neck typically indicates higher body fat.
| 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%+ |
Not all fat is the same:
If your percentage is higher than you'd like, start a structured plan.
For men, 14-17% is considered 'fit', while 18-24% is acceptable. For women, 21-24% is 'fit', and 25-31% is acceptable. Athletes typically have lower percentages.
The Navy Method is widely accurate within 3-4% for most people. It is generally more reliable than BMI but less precise than a DEXA scan.
Measure at the navel (belly button), not the narrowest part. Keep the tape level and snug but not tight. Breathe out naturally before measuring.
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