Calculate at home, with just a soft tape measure and scientific calculator or online calculation links (below). Just be aware that these results will not be 100% accurate, as measurements can vary. Best to do it a few times for an average result.
FOR WOMEN
Measurements (round any fractions to the nearest ½”)
N = Measurement around neck just below larynx protrusion.
W = Measurement around waist at thinnest part between bottom ribs and bellybutton. Breathe normally and measure on an exhale. Do not pull tight.
H = Measurement around hips, running tape over widest part of buttocks and keeping it parallel to floor. Do not wear any compressing fabric while taking measurements!!!
T = Measurement of height in bare feet with chin level to floor and gaze straight ahead. (T=tall)
1) Add W+H. Subtract N. This value will go in the first parenthesis of the equation.
2) Calculate, using a scientific calculator. (Don’t forget to put the parentheses around the values following the logs.) Do not use spaces, as I have done just for clarity.
163.205 log(W + H – N) – 97.684 log(T) – 78.387 = Female Body Fat %
FOR MEN
Measurements (round any fractions to the nearest ½”)
N = Measurement around neck just below larynx protrusion.
W = Measurement around bellybutton. Breathe normally and measure on an exhale. Do not pull tight.
T = Measurement of height in bare feet with chin level to floor and gaze straight ahead. (T=tall)
1) Subtract W – N. This value will go in the first parenthesis of the equation.
2) Calculate, using a scientific calculator. (Don’t forget to put the parentheses around the values following the logs.) Do not use spaces, as I have done just for clarity.
86.010 log(W – N) – 70.041 log(T) + 36.76 = Male Body Fat %
CALCULATOR LINKS
Scientific Calculator
Automated Body Fat Calculator
If you don’t like doing your own math, use this automated calculator.
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