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Calculate Your Body Fat Percentage (9-site Parrillo Skinfold Method)

Last updated: Monday, May 01, 2023
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9-site Parrillo
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The body fat percentage is the ratio between a person's total body fat and total mass (commonly known as weight).

This calculator uses the 9-site Parrillo skinfold method to help determine the body fat percentage.

Please measure your triceps, thigh, suprailiac, pectoral, midaxillary, subscapular, lower back, calf and abdominal using a body fat caliper regardless of your gender.

The 9-site Parrillo Skinfold formula for body fat percentage is defined as:
\(BFP\) \(=\) \(\dfrac{27 \times S}{weight}\)
\(BFP\): Body fat percentage
\(biceps\): the skinfold measurement of the biceps
\(triceps\): the skin fold measurements of the triceps
\(thigh\): the skinfold measurement of the thigh
\(suprailiac\): the skinfold measurement of the suprailiac
\(abdominal\): the skinfold measurement of the abdominal
\(pectoral\): the skinfold measurement of the pectoral
\(subscapular\): the skinfold measurement of the subscapular
\(lower back\): the skinfold measurement of the lower back
\(calf\): the skinfold measurement of the calf
\(age\): your age measured in years
\(weight\): your body weight measured in kilogram
The SI unit for BFP is: \(%\)
Select your gender and the type of units below
Female (Metric)
Female (Imperial)
Male (Metric)
Male (Imperial)

Female (Metric)

Use this calculator to determine the body fat percentage of an adult female using metric units.
the skinfold measurement of the biceps
\(biceps\)
\(millimeter\)
the skin fold measurements of the triceps
\(triceps\)
\(millimeter\)
the skinfold measurement of the thigh
\(thigh\)
\(millimeter\)
the skinfold measurement of the suprailiac
\(suprailiac\)
\(millimeter\)
the skinfold measurement of the abdominal
\(abdominal\)
\(millimeter\)
the skinfold measurement of the pectoral
\(pectoral\)
\(millimeter\)
the skinfold measurement of the subscapular
\(subscapular\)
\(millimeter\)
the skinfold measurement of the lower back
\(lower back\)
\(millimeter\)
the skinfold measurement of the calf
\(calf\)
\(millimeter\)
your age measured in years
\(age\)
\(year\)
your body weight measured in kilogram
\(weight\)
\(kilogram\)
Please note, that all calculators provided are for informational and educational purposes ONLY, and should NOT be taken as professional medical/dietary advice.
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