Free Body Fat Calculator
Estimate body fat percentage using the US Navy method. Free, instant.
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How to Use This Tool
Measure your waist, neck, and height in centimeters. Uses the US Navy body fat formula.
Why Use This?
Body fat percentage is a better health indicator than BMI alone, as it accounts for muscle vs fat distribution.
Frequently Asked Questions
How accurate is the Navy method? Within 3-4% of more expensive methods like DEXA scans for most people.