Body Fat Percentage Calculator

How the Body Fat Percentage Calculator Works

The following body fat calculator uses the U.S. Navy Circumference Method and you should input 3/4 body measurements into the calculator to estimate the percentage of your body that is made up of fat. The measurements need to be as follows:

Height: taken without shoes
Neck: taken below the larynx sloping slightly downward at the front
Waist: for men at navel height, for women at the smallest point
Hips: (women only) at the largest point

Body Fat Calculator
Male Female
Centimetres Inches
Height:
Neck:
Waist:
Hips:
Body Fat:

Once you have your Body Fat % from the calculator above you can then find out your body fat band using the following table.

	Women	Men
Essential Fat	10-12%	2-4%
Athletes	14-20%	6-13%
Fitness	21-24%	14-17%
Acceptable	25-31%	18-25%
Obese	32% or more	26% or more

 

Body Fat Calculator Formula

For men, all measurements in inches:
%Fat = 86.010*LOG(abdomen - neck) - 70.041*LOG(height) + 36.76

For men, all measurements in centimeters:
%Fat = 86.010*LOG(abdomen - neck) - 70.041*LOG(height) + 30.30

For women, all measurements in inches:
%Fat = 163.205*LOG(abdomen + hip - neck) - 97.684*LOG(height) - 78.387

For women, all measurements in centimeters:
%Fat = 163.205*LOG(abdomen + hip - neck) - 97.684*LOG(height) - 104.912