Pectoral: Three diagonal skin fold measurements taken half the distance between the nipple and the upper portion of the pectoral (chest) muscle at the armpit.

Abdominal: Three vertical skin fold measurements taken one inch to the right of the umbilicus (navel).

Thigh: Three vertical skin fold measurements taken half the distance between the patella (knee cap) and the inguinal crease (the skin crease between the thigh and the hip).

Formulas Developed From Research By:
Dr. Andrew S. Jackson (University of Houston)
and
Dr. Michael L. Pollock (University of Florida)

Calculator and Simplified Instructions:
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