Calculate your body fat percentage using the Durnin-Womersley formula based on four skinfold measurements.
Enter your skinfold measurements in millimeters (mm).
Body Density:
0.995 g/ml
Body Fat Percentage:
47.487 %
Fat Mass:
0 kg
Lean Body Mass:
This method converts four skinfold measurements into body density using the Durnin-Womersley approach, then converts density to percent body fat with the Siri equation.
Body Density = c - m Γ log10(sum of 4 skinfolds) (c and m depend on age and sex); Body Fat % = (495 / Body Density) - 450
Example measurements: Triceps 12 mm, Biceps 8 mm, Subscapular 10 mm, Suprailiac 14 mm.
When measured correctly by a trained technician, skinfold estimates are generally within Β±3-5% of laboratory methods; errors increase with poor technique.
Yes. The Durnin-Womersley equations use different constants for age groups and sex, so apply the appropriate set for best accuracy.
You can, but accuracy improves with practice or when performed by someone experienced; use proper calipers and follow standard landmark instructions.
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