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Monofilament Diameter

Calculate monofilament denier or diameter from polymer density and material specs.

Polymer density (g/cc)
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Denier from diameter
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Diameter from denier
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Method and formula

Denier=3.14×(Diameter (mm)1000)2×9000×Density×1064Diameter (mm)=DenierDensity×1069000×3.14×2×1000\begin{aligned} \text{Denier} &= \frac{3.14 \times \left(\frac{\text{Diameter (mm)}}{1000}\right)^2 \times 9000 \times \text{Density} \times 10^6}{4} \\[1em] \text{Diameter (mm)} &= \sqrt{\frac{\frac{\text{Denier}}{\text{Density} \times 10^6}}{9000 \times 3.14}} \times 2 \times 1000 \end{aligned}

Input variables

VariableExpected entry
PolymerChoose: PP, PA 6, PA 6,6, PET, PBT, PA 12, PA 6,12, PA 6,11, LDPE, HDPE, p-Aramid, m-Aramid, PS, PMMA, Carbon, Carbon HM, Carbon UHM, PAN
Diameter (mm)Enter a positive measured value.
DenierEnter a positive measured value.

Calculation workflow

  1. Enter the measurements in the displayed units.
  2. Check the selected yarn, fiber, weave, or trade unit where shown.
  3. Review each calculated output and its unit.
  4. Use Copy results to save the displayed values to recent history.

Outputs

  • Polymer density (g/cc)
  • Denier from diameter
  • Diameter from denier