Spinning Frequently Asked Questions

Q How many WPI is Aran weight / worsted weight / sport weight etc?

Yarn Weight Chart
(or 'how many WPI is that?')

Yarn typeWraps per inch (wpi)
Bulky6 or fewer wpi
Chunky7 wpi
Aran8 wpi
Worsted9 wpi
Double knit (DK)11 wpi
Sport12 wpi
Fingering or 4-ply14 wpi
3-ply16-18 wpi
Lace, cobweb, superfine or thread18 or more wpi


Use an inch gauge or yarn gauge (above) to check the weight of your yarn. Always knit a tension swatch to check your gauge.

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