Body density based on circumference measurements
Estimation of body density through circumference measurements and other data can be
used to estimate body composition and fat %. It is a non-invasive alternative to skin-fold
measurements and can be administered with the client still clothed. Due to standard
estimated error it is imperative that all measurements are exact.
Select the appropriate test below, follow the procedures and input the information on the
relevant calculator. You can then view your score on the ’General Body Fat Percentage’ table
below.
Circumference measurement protocols and calculator
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For male clients, find out the clients weight in kg
Use the correct anatomical landmarks outline in the ‘Anatomical Location’ table
All measurements should be done with a anthropometric, non-elastic measurement
tape
The client should stand upright but relaxed
Pull the tape to the right tension, but do not pinch or cause an indentation of the skin
Perform 2-3 readings per site and calculate the average
Anatomical locations of circumference measurement sites
(All measurements are in centimetres)
Circumference Abdomen Hips Iliac -
Anatomical site
Level with the umbilicus
Standing with the legs no more than 10cm apart, the largest
circumference below the umbilicus
Level with the iliac crests
Table for general body fat percentage for men & women
General Body Fat Percentage for Men
Classification
Underweight
Normal
Overweight
Obese
20-39 years
<8%
8% - 19%
20% - 24%
25%
40-59 years
<11%
11% - 21%
22% - 27%
>28%
60-79 years
<13%
13% - 24%
25% - 29%
>30%
General Body Fat Percentage for Women
Classification
Underweight
Normal
Overweight
Obese
20-39 years
<21%
21%-32%
33%-38%
>39%
40-59 years
23%
23%-33%
34%-39%
>40%
60-79 years
<24%
24%-35%
36%-41%
>42%