Bmi calculator

Body Fat Percentage (BFP) Formula

The Body Fat Calculator uses the following formulas to calculate the body fat percentage:

1.

Body fat calculator

Imperial Units:

Male: BFP = 86.01 * [log₁₀(A − N)] − 70.041 * [log₁₀(H)] + 36.76

Female: BFP = 163.205 * [log₁₀(W + C − N)] − 97.684 * [log₁₀(H)] − 78.387

Where: BFP = Body Fat Percentage, A = Abdomen [in], C = Hip Circumference [in], H = Height [in], N = Neck [in], W = Waist [in]

2.

Metric Units:

Male: BFP = 495 / ( 1.0324 − 0.19077 * [log₁₀(W − N)] + 0.15456 * [log₁₀(H)] ) − 450

Female: BFP = 495 / ( 1.29579 − 0.35004 * [log₁₀(W + C − N)] + 0.221 * [log₁₀(H)] ) − 450

Where: BFP = Body Fat Percentage, A = Abdomen [cm], C = Hip Circumference [cm], H = Height [cm], N = Neck [cm], W = Waist [cm]

References

1. Hodgdon JA, Beckett MB: Prediction of Percent Body Fat for U.S.

Navy Women From Body Circumferences and Height. San Diego, (CA): Naval Health Research Center; 1984a. Report No. 84-29.

2. Hodgdon JA, Beckett MB: Prediction of Percent Body Fat for U.S. Navy Men From Body Circumferences and Height.