Conversion Charts
Needle Size Conversion | Crochet Hook Size Conversion | ||||
UK | Metric | USA | UK | Metric | USA |
14 | 2mm | 0 | 14 | 2mm | - |
13 | 2.25mm | 1 | 13 | 2.25mm | B/1 |
- | 2.5mm | - | 12 | 2.5mm | - |
12 | 2.75mm | 2 | - | 2.75mm | C/2 |
11 | 3mm | - | 11 | 3mm | - |
10 | 3.25mm | 3 | 10 | 3.25mm | D/3 |
- | 3.5mm | 4 | 9 | 3.5mm | E/4 |
9 | 3.75mm | 5 | - | 3.75mm | F/5 |
8 | 4mm | 6 | 8 | 4mm | G/6 |
7 | 4.5mm | 7 | 7 | 4.5mm | 7 |
6 | 5mm | 8 | 6 | 5mm | H/8 |
5 | 5.5mm | 9 | 5 | 5.5mm | I/9 |
4 | 6mm | 10 | 4 | 6mm | J/10 |
3 | 6.5mm | 10.5 | 3 | 6.5mm | K/10½ |
2 | 7mm | - | 2 | 7mm | - |
1 | 7.5mm | - | 0 | 8mm | L/11 |
0 | 8mm | 11 | 0 | 9mm | M/13 |
0 | 9mm | 13 | 0 | 10mm | N/15 |
0 | 10mm | 15 | - | 11.5mm | O/16 |
- | 12mm | 17 | - | 16mm | Q |
- | 15mm | 19 | - | 19mm | S |
- | 20mm | 36 | |||
- | 25mm | 50 | |||
Yarn Weight Conversions | ||
UK | USA | AUSTRALIA |
1 Ply | Laceweight | 2 Ply |
2 Ply | Fingering | 3 Ply |
3 Ply | Sock | 3 Ply |
4 Ply | Sport | 5 Ply |
Double Knit / DK | DK / Light Worsted | 8 Ply |
Aran | Worsted | 10 Ply |
Chunky | Bulky | 12 Ply |
Super Chunky | Super Bulky | 14 Ply |