Body Fat Percentage Calculator

Estimate your body fat percentage using the U.S. Navy circumference method.

Inputs

Gender

Weight (kg)

10300

Height (cm)

50250

Waist (cm)

30200

Neck (cm)

2080

Calculation Results

Body Fat Percentage

13.69%

Fat Mass

9.58 kg

Lean Body Mass

60.42 kg

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Formula & Mathematical Explanation

\displaystyle \text{BF}_{\text{Male}} = 86.01 \log_{10}(W - N) - 70.04 \log_{10}(H) + 36.76

Calculates body fat using the U.S. Navy method. In the absence of a direct hip measurement for females, the hip circumference is estimated as waist circumference + 18 cm.