WPI
Wraps per inchA way of measuring the thickness of your yarn. To measure WPI, wrap the yarn around a ruler until the wraps cover one inch of the ruler. Count how many wraps fit into one inch.
Yarn weight as measured by WPI
| Yarn Weight | WPI |
|---|---|
| Lace | 30-40+ |
| Super Fine | 14-30 |
| Fine | 12-18 |
| Light | 11-15 |
| Medium | 9-12 |
| Bulky | 6-9 |
| Super-Bulky | 5-6 |
| Jumbo | 1-4 |
More information:
