| Metric size (mm) | U.S. size | UK/Canadian size | Japanese size |
|---|---|---|---|
| 2.0 | 0 | 14 | |
| 2.1 | 0 | ||
| 2.25 | 1 | 13 | |
| 2.4 | 1 | ||
| 2.5 | |||
| 2.7 | 2 | ||
| 2.75 | 2 | 12 | |
| 3.0 | 11 | 3 | |
| 3.25 | 3 | 10 | |
| 3.3 | 4 | ||
| 3.5 | 4 | ||
| 3.6 | 5 | ||
| 3.75 | 5 | 9 | |
| 3.9 | 6 | ||
| 4.0 | 6 | 8 | |
| 4.2 | 7 | ||
| 4.5 | 7 | 7 | 8 |
| 4.8 | 9 | ||
| 5.0 | 8 | 6 | |
| 5.1 | 10 | ||
| 5.4 | 11 | ||
| 5.5 | 9 | 5 | |
| 5.7 | 12 | ||
| 6.0 | 10 | 4 | 13 |
| 6.3 | 14 | ||
| 6.5 | 10 ½ | 3 | |
| 6.6 | 15 | ||
| 7.0 | 2 | 7 mm | |
| 7.5 | 1 | ||
| 8.0 | 11 | 0 | 8 mm |
| 9.0 | 13 | 00 | 9 mm |
| 10.0 | 15 | 000 | 10 mm |
| 12.0 | 17 | ||
| 16.0 | 19 | ||
| 19.0 | 25 | ||
| 25.0 | 50 |
|
| 種類 | 針軸の太さ | 日本（号） |
| レース針 | 0.40mm | 16号 |
| 0.50mm | 14号 | |
| 0.60mm | 12号 | |
| 0.75mm | 10号 | |
| 0.90mm | 8号 | |
| 1.00mm | 6号 | |
| 1.25mm | 4号 | |
| 1.50mm | 2号 | |
| 1.75mm | 0号 |
| 種類 | 針軸の太さ | 日本（号） |
| かぎ針 | 2.00mm | 2/0 |
| 2.30mm | 3/0 | |
| 2.50mm | 4/0 | |
| 3.00mm | 5/0 | |
| 3.50mm | 6/0 | |
| 4.00mm | 7/0 | |
| 4.50mm | 7.5/0 | |
| 5.00mm | 8/0 | |
| 5.50mm | 9/0 | |
| 6.00mm | 10/0 | |
| 7.00mm | ジャンボ7mm | |
| 8.00mm | ジャンボ8mm | |
| 10.00mm | ジャンボ10mm | |
| 12.00mm | ジャンボ12mm | |
| 15.00mm | ジャンボ15mm | |
| 20.00mm | ジャンボ20mm |
| US/Eur | U.S. | U.S. | U.S. | U.S. | Europe | Europe | Japan | U.K. | approx. | equiv. | |
| mm | usually | Vintage Susan Bates | Boye | Brittany | Mo-EZ | Addi | Inox | Clover | usually | thread size | knitting |
| 0.60 | 16 | 16 | 16 | 12 | 100 | needles | |||||
| 0.70 | 14 | 14 | 100 | ||||||||
| 0.75 | 14 | 14 | 14 | 14 | 10 | 7 | 80-100 | ||||
| 0.85 | 13 | 13 | 6.5 | 40-80 | |||||||
| 0.90 | 13 | 13 | 8 | 40-80 | |||||||
| 1.00 | 12 | 12 | 12 | 12 | 12 | 6 | 6 | 30-60 | |||
| 1.05 | 11 | 11 | 20-40 | ||||||||
| 1.10 | 11 | 11 | 5.5 | 20-40 | |||||||
| 1.15 | 10 | 10 | 20-30 | ||||||||
| 1.25 | 10 | 9 | 10 | 10 | 4 | 20 | |||||
| 1.30 | 10 | 10 | 5 | 20 | |||||||
| 1.40 | 9 | 8 | 9 | 4 | 10-20 | ||||||
| 1.50 | 8 | 7 | 8 | 8 | 8 | 2 | 3 | 10 | |||
| 1.65 | 7 | 7 | 2.5 | 10 | |||||||
| US/Eur | U.S. | U.S. | U.S. | U.S. | Europe | Europe | Japan | U.K. | approx. | equiv. | |
| mm | usually | Vintage Susan Bates | Boye | Brittany | Mo-EZ | Addi | Inox | Clover | usually | thread size | knitting |
| 1.75 | 6 | 4 | 6 | 6 | 00 | 10 | |||||
| 1.80 | 6 | 6 | 2 | 10 | |||||||
| 1.90 | 5 | 5 | 1.5 | 5-10 | |||||||
| 2.00 | 4A | 1 | 4 | A 0 | B | 1 | 5-10 | ||||
| 2.10 | 3 | 3 | 3 | 1 | 5-10 | ||||||
| 2.20 | 2 | 2 | 5-10 | ||||||||
| 2.25 | 2 B | 2 B | 12 | 5-10 | |||||||
| 2.30 | 2 | B | 5-10 | ||||||||
| 2.35 | 1 B | 1 | B 1 | C | C | 5-10 | |||||
| 2.50 | 0 | 5-10 | |||||||||
| 2.55 | 0 | 3-5 | |||||||||
| 2.70 | 00 | 1 | 3-5 | ||||||||
| 2.75 | C | C 2 | C | D | D | 11 | 3-5 | 2 | |||
| 3.00 | 0 | C 2 | 00 | 3-5 | |||||||
| 3.25 | D | D 3 | D | D | D 3 | 10 | 3 | ||||
| 3.50 | E | E 4 | 00 E | E | E 4 | E | E | 9 | 4 | ||
| US/Eur | U.S. | U.S. | U.S. | U.S. | Europe | Europe | Japan | U.K. | approx. | equiv. | |
| mm | usually | Vintage Susan Bates | Boye | Brittany | Mo-EZ | Addi | Inox | Clover | usually | thread size | knitting |
| 3.75 | F | F | F 3.75 | F | 8 | 5 | |||||
| 4.00 | F | F 5 | F | 5.5 | F 4 | F | |||||
| 4.25 | G | G | 7 | 6 | |||||||
| 4.50 | G | G 6 | G | 7 | F 6/7 | G | G | 7 | |||
| 5.00 | H | H 8 | H | H | H 8 | H | 6 | 8 | |||
| 5.25 | I | I | H | 9 | |||||||
| 5.50 | I | I 9 | I | 9 1/2 | I | I | 5 | ||||
| 5.75 | J | J | 10 | ||||||||
| 6.00 | J | J 10 | J | 10 1/4 | J 10 | J | J | 4 | |||
| 6.50 | K | K 10 1/2 | K | K | 2/3 | 10.5 | |||||
| 7.00 | K | 10 3/4 | K 10.5 | K | |||||||
| 8.00 | L | M 13 | L | 5/16" | L 11 | 0/1 | 11 | ||||
| 9.00 | M | N 15 | N | M | 3/8" | 00 | 13 | ||||
| 10.00 | N | N 15 | 15 | ||||||||
| 11.00 | 7/16" | 16 | |||||||||
| 12.00 | O | 1/2" | O | 17 | |||||||
| 15.00 | P | 5/8" | P 16 | ||||||||
| 16.00 | Q | 3/4" | |||||||||
| 19.00 | S | ||||||||||
| US/Eur | U.S. | U.S. | U.S. | U.S. | Europe | Europe | Japan | U.K. | approx. | equiv. | |
| mm | usually | Vintage Susan Bates | Boye | Brittany | Mo-EZ | Addi | Inox | Clover | usually | thread size | knitting |
