Body Fat Calculator
Body Fat % (Male)
US Navy method for men — measure waist at navel, neck at narrowest
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Body Fat % (Female)
US Navy method for women — measure waist, hip, and neck
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Formula
Men: BF% = 495/(1.0324 - 0.19077*log10(waist-neck) + 0.15456*log10(height)) - 450
Frequently Asked Questions
How accurate is the US Navy body fat method?
The US Navy method is accurate to within 1-3% for most people. It is one of the most reliable non-laboratory methods and is used by the US military for fitness assessments.
What is a healthy body fat percentage?
Men: 10-20% is healthy (6-13% athletes, 14-17% fitness). Women: 18-28% is healthy (14-20% athletes, 21-24% fitness). Essential fat is 2-5% for men and 10-13% for women.
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