Navy Body Fat Calculator
Male
Navy body fat formula for men
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Female
Navy body fat formula for women
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Formula
Male: BF% = 495 / (1.0324 - 0.19077 × log10(waist - neck) + 0.15456 × log10(height)) - 450 | Female: BF% = 495 / (1.29579 - 0.35004 × log10(waist + hip - neck) + 0.22100 × log10(height)) - 450
Frequently Asked Questions
How accurate is the Navy body fat method?
The Navy method is accurate within about 3-4% of DEXA scan results for most people. It is one of the most widely used circumference-based body fat estimation methods.
Why do women need a hip measurement?
Women tend to carry more fat in the hip/thigh area. Including the hip measurement improves the accuracy of the estimate for women by accounting for sex-specific fat distribution patterns.
What body fat percentage is healthy?
For men: 14-17% is fit, 18-24% is average. For women: 21-24% is fit, 25-31% is average. Essential fat is 2-5% for men and 10-13% for women. Going below essential fat is dangerous.
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