Navy method
Sample
Neck + waist (+ hip for women) measurements.
What you get
Body fat % estimate from circumference formula.
Body Fat Calculator
The Navy method uses a few girth measurements and log equations. Follow standard tape placement for best consistency.
Body Fat Calculator
US Navy circumference method (measurements in inches).
Body fat (estimate)
21.3%
These tools provide general fitness estimates only and are not a substitute for professional medical advice.
How to Use This Tool
- Measure per protocol (inches).
- Enter values for your sex.
- Review the estimated body fat percentage.
Features
- Separate inputs for men and women
- Inch-based formula
- Copy-friendly result
Example
Frequently Asked Questions
What is the US Navy tape method?
It estimates body fat from neck, waist, hip (for women), and height with published circumference equations. Consistent tape placement matters more than decimal precision.
Is this medical advice?
No. This calculator is for general education and planning only. Always consult a qualified clinician for personal health decisions.
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