Enter the age, gender, and skinfold measurements into the calculator to determine the body fat percentage using the Durnin Womersley formula.
Durnin Womersley Body Fat Formula
The following formulas are used to calculate the body fat percentage based on the Durnin Womersley method:
For Males: BD = 1.1631 - 0.0632 * log10(S) + 0.000321 * A
Variables:
- BD is the body density
- S is the sum of the tricep, bicep, subscapular, and suprailiac skinfolds in millimeters
- A is the age in years
- BF% is the body fat percentage
To calculate body fat percentage, first sum the skinfold measurements, then apply the appropriate formula based on gender to find the body density. Finally, use the body density to calculate the body fat percentage.
What is the Durnin Womersley Method?
The Durnin Womersley method is a technique used to estimate body fat percentage based on skinfold measurements. It involves measuring the thickness of skinfolds at specific body sites and using these measurements to estimate body density, which can then be converted to body fat percentage. This method is named after the researchers J.V.G.A. Durnin and J. Womersley who developed the equations used in the calculations.
How to Calculate Body Fat Using the Durnin Womersley Method?
The following steps outline how to calculate body fat percentage using the Durnin Womersley method:
- Measure the thickness of the tricep, bicep, subscapular, and suprailiac skinfolds in millimeters.
- Sum these skinfold measurements to get S.
- Determine the age of the individual in years (A).
- Use the appropriate formula based on the individual’s gender to calculate body density (BD).
- Calculate the body fat percentage (BF%) using the body density.
- Use the calculator above to verify your results.
Example Problem:
Use the following variables as an example problem to test your knowledge.
Age (A) = 30 years
Gender = Male
Tricep Skinfold = 10 mm
Bicep Skinfold = 5 mm
Subscapular Skinfold = 15 mm
Suprailiac Skinfold = 20 mm
