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 type | Wraps per inch (wpi) |
|---|---|
| Bulky | 6 or fewer wpi |
| Chunky | 7 wpi |
| Aran | 8 wpi |
| Worsted | 9 wpi |
| Double knit (DK) | 11 wpi |
| Sport | 12 wpi |
| Fingering or 4-ply | 14 wpi |
| 3-ply | 16-18 wpi |
| Lace, cobweb, superfine or thread | 18 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.

