Estimate your body fat percentage using the U.S. Navy tape-measure method — just a few measurements, no special equipment needed.
This tool uses the U.S. Navy circumference method, a formula developed for military fitness assessments. It's generally within a few percentage points of more precise methods like DEXA scans, making it a solid practical estimate without special equipment.
| Category | Body Fat % |
|---|---|
| Essential Fat | 2–5% |
| Athletes | 6–13% |
| Fitness | 14–17% |
| Acceptable | 18–24% |
| Obese | 25%+ |
| Category | Body Fat % |
|---|---|
| Essential Fat | 10–13% |
| Athletes | 14–20% |
| Fitness | 21–24% |
| Acceptable | 25–31% |
| Obese | 32%+ |
It's generally within a few percentage points of more precise methods like DEXA scans for most people, making it a practical estimate rather than a lab-grade measurement.
Measure the neck just below the larynx, and the waist at the navel for men or at the narrowest point for women, keeping the tape snug but not compressing the skin.
For men, roughly 14–24% is considered acceptable to fit; for women, roughly 21–31% is considered acceptable to fit, though healthy ranges vary by age and individual.
Last Updated: July 2026