Body fat - Skinfold - Durnin and Womersley

Durnin and Womersley bodyfat by skinfoldAmong affordable methods for measuring body fat percentage, using a skinfold caliper is still the best and the 4 spot formula by Durnin and Womersley is very accurate for most people.

Among affordable methods for measuring body fat percentage, using a skinfold caliper is still the best and the four spot formula by Durnin and Womersley is very accurate for most people.


Skinfold spots Instructions:
1. Measure skinfold in millimeters as indicated on the pictures and enter values.
2. For further instructions see our guide "How to measure body fat with a skinfold caliper"

Fat Percentage
Lean Body Mass


The Durnin & Womersley calculation should be considered valid for people between 17 and 68 years old.


Durnin JVGA, Womersley J. Body fat assessed from total body density and its estimation from skinfold thickness: measurements on 481 men and women aged from 16 to 72 years. Br J Nutrition. 1974; 32: 77-97.

Siri WE. The gross composition of the body. pages 239-280. IN: Lawrence JH, Tobias CA (editors). Advances in Biological and Medical Physics. Academic Press, Inc. Advances in Biological and Medical Physics. 1956; 4: 239-280.


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#37 Andrea 2014-06-27 15:30
Help please - i am looking for 3-site formula for Biceps, sub-scapular and calf. Hope someone can help me - for fat % in children 5 & up
#36 tanya 2014-02-09 22:11
Hi, for elderly is the triceps skinfold thickness enough or you need all four sites to assess nutritional status
#35 saeed 2013-10-07 11:00
How can I measure body fat% with 7 skin fold (Biceps, triceps, subscapular, supraspinale, abdomen, thigh, and calf ). thanks
#34 jyotsana 2013-09-05 03:45
how to calculate the upper body fat % from subscapular skin fold thickness?
#33 Pallas 2013-07-23 16:02
How can I Calculate Percent Body Fat from Skinfold Measurements tricepes ect
#32 Dr. Marc 2013-03-01 23:58
What is the average range percentage of body fat for a 20 year old female and what is the average lean body mass for a 20 year old female? For Example 23%-27.9% body fat and 42kg-49kg?

Many Thanks
#31 lorenzo sartori 2012-07-19 20:02
I wish, please, to know the borderlines > < of the value of the plicometer (1 - 4?), for every poynt of the body
Thank you
#30 karoune 2012-06-05 12:57
oless, can you geve me the formula of % fat for adolescents (11 to 17 years)? thanks
#29 karoune 2012-06-05 12:55
please, can you tel me the formula of % fat for adolescents (11 to 17 years. thanks
#28 rekha m r 2012-04-25 11:50
firs of all i would like to thanking you . i am using your chart
#27 personal trainer charlotte nc 2012-04-21 00:27
Are we able to use these calculators on our own website?
#26 james 2011-12-29 15:06
what is the sum of the 4 sites? is this the 4 sites added up e.g B=10 T=10 S=10 S=10 total sum =40 then log=1.60206

?? the foumula is not working??
#25 Adrian 2011-11-01 20:54
can you edit and make possible to write biceps, triceps, subscapular and suplailiac values of 0.5mm:
Example: biceps 2.5 mm, triceps 8.5mm, subscapular 11.5mm and suprailiac 14.5mm??

i would really apreciate if you can do that.

#24 DR.SALIM JAVED 2011-10-17 10:44
I really like your web site, but I am using it 1st time for appropriate formulas with reliability and validity to calculate fat% of sum of 3,4,,5 and recent(common for all) skin fold sites. Let me know of any latest changes. Thanks.
#23 Johnny 2011-10-04 22:25
Durnin-womersly formula on the chart it says sum of folds then below that it has a series of numbers from 5-200 in a sequence of 5's how do u know how many sums of fold u have when u r done found your measurements?
#22 MANOHAR 2011-04-10 16:04
PlEASE GIVE ME THE Formula For Calculating Percent Body Fat from Skinfold Measurements(bi cepes and tricepes ect)
#21 Morten 2010-11-24 22:15
Stuck -> I don't understand your question. How can your result vary if in you enter the same numbers in to the same formula. Also, I think your biceps measurement is wrong. It is unlikely that you have 81 mm for biceps when you have 13 mm for other measurements.
#20 Stuck 2010-11-21 17:55
I'm struggling to find density using the equation given for an assignment- I get different values each time I try and no idea which is right! Can anyone help?

My measurements are: 81.5mm (biceps); 25.8mm (triceps); 13.3 (subscap); and 12.6 (suprailiac).
The equation given (female 20-29) is:
density= 1.1599-(0.0717x log of sum of four sites)
(I think we have to use this equation even if outdated)

I'd appreciate any suggestions as my answers at the moment are ranging from 1.021 to 1.076.
#19 Morten Z 2010-10-21 11:35
Ashvin ->
The formulas for converting body density to percent body fat for American Indians are:
Males: Age 18-62(4.97/Db)- 4.52
Females: Age 18-60(4.81/Db)-4.34

The basic Durnin & Womersley formulas are the same.

Not sure of the original reference specific for this.
#18 Ashvin 2010-10-21 09:56
what is the formula for Indians?plz give me referance of it .
#17 Administrator 2010-08-26 00:40
Rachael ->
Here is the explanation: Before the modification of the calculator all calculations were based on the formula for age 20-29, because this works best for an athletic population even though the person is above 29. However as this wasn't in agreement with the original source and possibly the calculator is also being used for a non-athletic population, the calculator was changed to use the age-differentia ted formulas.

If you want the same calculation as before, just enter age as 29.
#16 Rachael 2010-08-25 04:09
Has anyone else found that their previous clients measurements are now at a higher % due to the modifications in the calculations? When infact the measurements have not changed.
#15 fathima 2010-08-15 13:21
I want to measure body fat of adults. triceps, bicep and abdomen skinfold thicknesses have taken. Please give me an equation that can be measured body fat by using these all skinfold values or using any one of skinfold thickness. thanks
#14 Administrator 2010-07-31 00:02
The calculator has now been updated so that age affects the result correctly. Also, an evaluation of the result has been included in the calculator.
#13 Mike 2010-07-24 20:48
Calculator is not loading onto computer. Help?
#12 Ricardo 2010-04-30 18:22
La variable edad no influye en el resultado del porcentaje de grasa corporal. Por favor revisar este detalle para que sea efectivamente util esta aplicación.
#11 emmanuel a 2010-03-25 23:58
great job. i need an equation for percentage body fat, lean body mass and total boby fat with standards to intrepret my the result for male adolescent
#10 emmanuel A 2010-03-25 23:54
how can iintrerpret the result of body fat and lean boby mass
#9 Jon Mc. 2010-01-01 00:22
And if anyone wants the cleaner version of the comment below email me and I'll attach a copy of the documents I have.
#8 Jon Mc. 2010-01-01 00:20
Here is the Durnin & Womersley complete formulas:
Calculation of Body Density According to the method of Durnin & Womersley
(Biceps, Triceps, Subscapula, and Suprailiac)

Equations for Men
Age range
17-19D = 1.1620 – 0.0630 x (log ∑)
20-29D = 1.1631 – 0.0632 x (log ∑)
30-39D = 1.1422 – 0.0544 x (log ∑)
40-49D = 1.1620 – 0.0700 x (log ∑)
50+D = 1.1715 – 0.0779 x (log ∑)

Equations for Women
Age range
17-19D = 1.1549 – 0.0678 x (log ∑)
20-29D = 1.1599 – 0.0717 x (log ∑)
30-39D = 1.1423 – 0.0632 x (log ∑)
40-49D = 1.1333 – 0.0612 x (log ∑)
50+D = 1.1339 – 0.0645 x (log ∑)

American Indian18-60Female(4.81/Db)-4.34
Black 18-32Male(4.37/ Db)-3.93
Japanese Native18-48Male (4.97/Db)-4.52
Female(4.76/Db) -4.28
61-78Male(4.87/ Db)-4.41
White 7-12Male(5.30/D b)-4.89
Female(5.35/Db) -4.95
13-16Male(5.07/ Db)-4.64
Female(5.10/Db) -4.66
17-19Male(4.99/ Db)-4.55
Female(5.05/Db) -4.62
20-80Male(4.95/ Db)-4.50
Levels of Body Fatness
Obese 17-62Male(5.00/Db)-4.56
Athletes*High school and college age Male and female(4.57/Db)-4.142

I hope this is detailed enough for everyone.
#7 kerim 2009-12-15 04:22
this is the formula of durnin/Womersle y;
S = Sum of all four folds
A = age in years
d = 1,1714 - 0.063 * log(S) - 0.000406*A
Bodyfat [%] = 495 / d - 450
#6 charles olivier 2009-11-17 22:43
What is the formulae for this body fat estimation?
#5 RG 2009-10-22 14:35
How can I interprete the results of o;-)y fat and lean body mass?
#4 RG 2009-10-22 14:34
Which caliper is recommended? Lange or Harpenden? Because they have different compressiblility...
Where I can get the formula for D&W equation?
#3 Morten Z 2009-09-29 13:19
Image updated :-)
#2 Morten Z 2009-09-22 17:43
Thanks for the comment - never gave that a thought. I will change it ASAP.
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