Body Fat Percentage Calc is a verified health & fitness calculation tool on Calcify. Estimate Body Fat Percentage, Fat Mass, and Lean Muscle Mass using the U.S. Navy circumference method. All calculations execute locally in your browser with multi-currency support, visual breakdowns, and white-label client exports.
Lean Body Mass: 62.0 kg | Fat Mass: 12.0 kg
US Navy Male Formula: BF% = 495 / [ 1.0324 - 0.19077·log₁₀(Waist - Neck) + 0.15456·log₁₀(Height) ] - 450
Example Inputs: Body Weight (kg): 74 kg · Height (cm): 175 cm · Waist Circumference at Navel (cm): 84 cm · Neck Circumference (cm): 38 cm
Example Output: Estimated Body Fat Percentage: 16.2% (Lean Body Mass: 62.0 kg | Fat Mass: 12.0 kg)
The Body Fat Percentage Calc on Calcify applies the verified mathematical formula: US Navy Male Formula: BF% = 495 / [ 1.0324 - 0.19077·log₁₀(Waist - Neck) + 0.15456·log₁₀(Height) ] - 450. Every input is validated in real time with multi-currency formatting to ensure zero rounding or division errors.
Uses the validated U.S. Navy anthropometric circumference equation.
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