Yarn Weight Converter
The interactive tool is coming. For now, save this chart:
| CYC # | US name | UK name | Suggested hook | Suggested needle |
|---|---|---|---|---|
| 0 | Lace | 1 ply | 1.4 to 2.25 mm | 1.5 to 2.25 mm |
| 1 | Super fine / Sock | 3 ply | 2.25 to 3.5 mm | 2.25 to 3.25 mm |
| 2 | Fine / Sport | 4 ply | 3.5 to 4.5 mm | 3.25 to 3.75 mm |
| 3 | Light worsted / DK | DK | 4.5 to 5.5 mm | 3.75 to 4.5 mm |
| 4 | Worsted / Aran | Aran | 5.5 to 6.5 mm | 4.5 to 5.5 mm |
| 5 | Bulky | Chunky | 6.5 to 9 mm | 5.5 to 8 mm |
| 6 | Super bulky | Super chunky | 9 to 15 mm | 8 to 12.75 mm |
| 7 | Jumbo | Roving | 15 mm and up | 12.75 mm and up |