How to measure correctly
Use a flexible tape measure without pulling too tightly against the skin. Measure the waist at navel height, the neck just below the Adam's apple, and the hips at the widest point of the buttocks. Always measure at the same spot and time of day (preferably in the morning before eating) for consistent tracking over time.
Classification table
| Category | Men | Women |
|---|---|---|
| Essential | 2% to 5% | 10% to 13% |
| Athletes | 6% to 13% | 14% to 20% |
| Fitness | 14% to 17% | 21% to 24% |
| Acceptable | 18% to 24% | 25% to 31% |
| Above Average | 25% or more | 32% or more |
These body fat categories are general reference ranges and may vary depending on the source, age, and individual characteristics. The US Navy method provides an estimate rather than a medical diagnosis.
Limitations of the US Navy Method
The US Navy method provides a practical estimation based on body circumferences rather than direct measurement. It carries a margin of error of a few percentage points compared to DEXA scans, calipers, or bioimpedance analysis. It is best used for tracking trends over time rather than as an exact medical diagnosis.