Wraps Per Inch (WPI) Tool Kit -Q

Wraps Per Inch (WPI) Tool Kit -Q

  • $9.99

This clever tool and Knit-Kard enable users to measure the thickness (weight) of their yarn. The tool is a wooden device which has a laser etched legend on it which the user wraps their yarn around. Then they know the WPI for that yarn. The handy WPI Knit Kard (which is only available when you buy this tool), then tells the user what the weight of their yarn is based on the WPI. We have sold many tens-of-thousands of this tool since its inception in early 2000. Visit the WPI webpage.

Customer Reviews

Based on 1 review Write a review


Ask a Question
  • Is there any way this tool can be used to measure length needed for long tail cast ons? I use long tail cast ons a lot, and it's very hard to determine the amount needed for casting on large amounts of cast ons. It would be great if this tool could do that, too.

    You need our Long Tail Cast-on Knit Kard which solves the problem. It is included in our popular Knit-Kard set of 14 Knit-Kards. Check it out in our store under Knit Kards.

    I do not believe there is a way to have the WPI Tool calculate this measurement