About Body Fat Calculator
Accurately estimate body fat percentage using the U.S. Navy circumference method.. Designed for accurate, instantaneous calculations with zero wait time.
Formula
U.S. Navy Method: log10(Waist - Neck) & log10(Height)
Example Calculation
A male with 85cm waist, 38cm neck and 178cm height has ~15.8% body fat.
How to Use
- Enter your values into the form fields above.
- The calculation updates immediately in real time.
- Inspect the main summary and secondary breakdowns below.