Reference Guide
Yarn Weight Differences
UK and US yarn weight names don't line up exactly — use this as a rough guide, not an exact match.
Not exact: unlike stitch names, yarn weight terms aren't a clean 1-for-1 swap. If a project depends on getting the weight exactly right, check the ply and yardage on the label rather than relying on the name alone.
| UK term | US term | Weight # | |
|---|---|---|---|
| Lace / cobweb (2 ply) | ≈ | Lace | 0 |
| 4 ply | ≈ | Fingering / sock | 1 |
| Double knit (DK) | ≈ | Light worsted / DK | 3 |
| Aran | ≈ | Worsted | 4 |
| Chunky | ≈ | Bulky | 5 |
| Super chunky | ≈ | Super bulky | 6 |
| Jumbo | ≈ | Jumbo | 7 |