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How to Determine Stretch Percentage in Fabric

Learn how to calculate your fabric's stretch percentage.

Posted in: Tutorials & Techniques • October 13, 2020

Unsure if your fabric has the right amount of stretch? In this quick video, you'll learn a formula for calculating your fabric's stretch percentage, so you'll know if it's right for your next knit garment.


  1. stretched to amount - starting amount = X

  2. X ÷ starting amount = Y

  3. Y X 100 = % of stretch

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