YUTHI Calculator · Diagnostics · Body Composition
Body Fat
The Navy method estimates body fat percentage from circumference measurements – easier than a caliper, more accurate than BMI. All you need is a tape measure.
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Your estimated body fat percentage
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The Navy method is accurate to about ±3 percentage points. A DEXA scan or hydrostatic weighing is more precise — ask a medical practice or a diagnostics centre near you.
Formulas: Men: %BF = 495 / (1.0324 − 0.19077·log₁₀(waist−neck) + 0.15456·log₁₀(height)) − 450. Women: %BF = 495 / (1.29579 − 0.35004·log₁₀(waist+hip−neck) + 0.22100·log₁₀(height)) − 450. · Source: Hodgdon JA, Beckett MB. U.S. Navy Body Fat Standard. Naval Health Research Center, 1984.