Health
Body-fat estimate (Navy method)
A tape-measure estimate used by the U.S. Navy. It is not a DEXA, Bod Pod, or clinical measurement. Use it only as a rough trend tool.
Results
Enter values to see results.
How this calculator works
The Navy formulas use common logarithms of height and of (waist minus neck) for men, or (waist + hip minus neck) for women, after converting measurements to inches. Category bands (athletic, fitness, average) are general population labels, not clinical cutoffs.
Estimate only — not medical advice. Tape placement, posture, and hydration swing the result by several percentage points. This is not appropriate as a diagnosis of obesity, eating-disorder screening, or military qualification on its own. Consult a qualified clinician for body-composition assessment.