Wraps Per Inch

Standard
Wraps Per Inch

WPI (wraps per inch) is one of the most useful ways to categorise your yarn. It tells you if your yarn is DK, ‘4-ply’, aran or laceweight, etc.

WPI is easy to measure, it literally means ‘how many times can you line strands of this yarn next to each other, within a one-inch span. You can buy a fancy WPI gauge (they’re pretty cheap, usually under five GB pounds. Here’s a lovely one fromΒ Doodlestop)Β or you can use a ruler.

The difficulty can come when you try to look up what your WPI value means.There are many WPI tables out there, but they don’t always agree. I researched a lot of different tables and tried to find a consensus on yarn gauges. My conclusions are shown in the very handmade table shown here:

20150322_160310

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One response »

  1. Pingback: The Single Skein | Story Skeins

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