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Fabric calculator

Fabric Cover

Calculate woven fabric cover factor from yarn counts and sett.

Weave factor
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Fabric cover factor
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Method and formula

Cover=Weave Factor×((EPIWarp Count (Ne)+PPIWeft Count (Ne))−EPI×PPI28×Warp Count (Ne)×Weft Count (Ne))\text{Cover} = \text{Weave Factor} \times \left( \left( \frac{\text{EPI}}{\sqrt{\text{Warp Count (Ne)}}} + \frac{\text{PPI}}{\sqrt{\text{Weft Count (Ne)}}} \right) - \frac{\text{EPI} \times \text{PPI}}{28 \times \sqrt{\text{Warp Count (Ne)}} \times \sqrt{\text{Weft Count (Ne)}}} \right)

Input variables

VariableExpected entry
Warp yarn count (Ne)Enter a positive measured value.
Weft yarn count (Ne)Enter a positive measured value.
Ends per inchEnter a positive measured value.
Picks per inchEnter a positive measured value.
Fabric weaveChoose: Plain, Twill 1/2, Twill 1/3, Basket 2/2, Satin 1/4

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

  • Weave factor
  • Fabric cover factor