Body Density Equations: Sloan

These equations, based on the research by Sloan et al., give a value for body density from skinfold test results. The level of percent bodyfat (%BF) can be calculated from body density using the Siri Equation. See more equations for measuring body fat using skinfold measures.

Males

Body Density = 1.1043 - (0.001327 x thigh skinfold in mm) - (0.00131 x subscapular skinfold in mm), based on a sample aged 18-26.
(reference: Sloan AW: Estimation of body fat in young men., J Appl. Physiol. (1967);23:p311-315)

Females

Body Density = 1.0764 - (0.0008 x iliac crest skinfold in mm) - (0.00088 x tricep skinfold in mm), based on a sample aged 17-25.
(reference: Sloan, A.W., Burt A.J., Blyth C.S.: Estimating body fat in young women., J. Appl. Physiol. (1962);17:p967-970)

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