Navy Body Fat Calculator
Estimate your body fat percentage using the official U.S. Navy circumference method (Hodgdon-Beckett equations).
Enter Your Measurements
All measurements should be taken on bare skin using a flexible, non-stretch tape measure.
Measurement Units
in
in
in
lbs
How to Measure
Accurate measurements are key for reliable results. Follow these official Navy guidelines.
Body Fat Categories
Reference ranges for body fat percentage by classification
| Category | Women | Men |
|---|---|---|
| Essential Fat | 9-11% | 2-5% |
| Athletes | 12-19% | 6-13% |
| Fitness | 20-24% | 14-17% |
| Acceptable | 25-29% | 18-24% |
| Obese | 30%+ | 25%+ |
Disclaimer
This calculator uses the U.S. Navy circumference method (Hodgdon-Beckett equations), which estimates body fat with approximately ±3-4% accuracy compared to DEXA scans.
Results may vary based on measurement technique, hydration levels, and individual body composition differences. This tool is for informational purposes only and should not replace professional medical advice or clinical body composition assessments.
For the most accurate results, consider having measurements taken by a trained professional or comparing with other methods like DEXA, hydrostatic weighing, or bod pod.
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