The formula for men is:
%Fat=495/(1.0324-0.19077(log(waist-neck))+0.15456(log(height)))-450
The formula for women is:
%Fat=495/(1.29579-0.35004(log(waist+hip-neck))+0.22100(log(height)))-450
LOG refers to the logarithm with a base of 10, or LOG10, not that with a base of e, or LN. LOG(100) = 2.
The formulas require the measurements to be in Centimeters with the acurracy of 0.5 cm.
The American Council on Exercise uses the following categories based on percentage of body fat:
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