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Yarn calculator

Yarn Crimp

Calculate warp and weft crimp in woven fabric.

Warp crimp (%)
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Weft crimp (%)
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Method and formula

Warp Crimp (%)=100×Straighten Length Warp−Fabric Length WarpFabric Length WarpWeft Crimp (%)=100×Straighten Length Weft−Fabric Length WeftFabric Length Weft\begin{aligned} \text{Warp Crimp (\%)} &= 100 \times \frac{\text{Straighten Length Warp} - \text{Fabric Length Warp}}{\text{Fabric Length Warp}} \\[1em] \text{Weft Crimp (\%)} &= 100 \times \frac{\text{Straighten Length Weft} - \text{Fabric Length Weft}}{\text{Fabric Length Weft}} \end{aligned}

Input variables

VariableExpected entry
Fabric length, warp directionEnter a positive measured value.
Straightened warp lengthEnter a positive measured value.
Fabric length, weft directionEnter a positive measured value.
Straightened weft lengthEnter 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

  • Warp crimp (%)
  • Weft crimp (%)