US ↔ UK terminology
The same stitch, two names.
US and UK crochet terms describe the same stitches but use different names. Misreading one for the other is the most common way to ruin a pattern. Here’s the lookup table.
Stitch names
| US | UK |
|---|---|
| Slip stitch (sl st) | Slip stitch (sl st) |
| Single crochet (sc) | Double crochet (dc) |
| Half double crochet (hdc) | Half treble (htr) |
| Double crochet (dc) | Treble (tr) |
| Treble crochet (tr) | Double treble (dtr) |
| Double treble (dtr) | Triple treble (trtr) |
| Skip | Miss |
| Yarn over (yo) | Yarn over hook (yoh) |
| Gauge | Tension |
Hook sizes
| US | UK | mm |
|---|---|---|
| B-1 | 13 | 2.25 |
| C-2 | 12 | 2.75 |
| D-3 | 11 | 3.25 |
| E-4 | 10 | 3.5 |
| F-5 | 9 | 3.75 |
| G-6 | 8 | 4.0 |
| 7 | 7 | 4.5 |
| H-8 | 6 | 5.0 |
| I-9 | 5 | 5.5 |
| J-10 | 4 | 6.0 |
| K-10½ | 3 | 6.5 |
| L-11 | 0 | 8.0 |
| M/N-13 | 00 | 9.0 |
| N/P-15 | 000 | 10.0 |
| P/Q | — | 15.0 |
| Q | — | 16.0 |
| S | — | 19.0 |
Yarn weights
| CYC | US name | UK name |
|---|---|---|
| 0 | Lace / 10-count thread | 1-ply / cobweb |
| 1 | Super Fine / sock | 2-ply / 3-ply |
| 2 | Fine / sport | 4-ply |
| 3 | Light / DK | DK |
| 4 | Medium / worsted / aran | Aran |
| 5 | Bulky / chunky | Chunky |
| 6 | Super Bulky | Super Chunky |
| 7 | Jumbo | Jumbo |