日本 / JP | 米国 / US | 英国 / UK | 直径 / Diameter (mm) | 円周 / Circumference (mm) |
1 | 1 | C | 13 | 40.8 |
2 | 2 | D | 13 1/3 | 41.9 |
3 | 2.5 | E | 13 2/3 | 42.9 |
4 | 3 | F | 14 | 44 |
5 | 3.5 | G | 14 1/3 | 45 |
6 | 3.5 - 4 | G - H | 14 2/3 | 46.1 |
7 | 4 - 4.5 | G - I | 15 | 47.1 |
8 | 4.5 - 5 | I - J | 15 1/3 | 48.2 |
9 | 5 | J | 15 2/3 | 49.2 |
10 | 5.5 | K | 16 | 50.3 |
11 | 6 | L | 16 1/3 | 51.3 |
12 | 6.5 | L - M | 16 2/3 | 52.4 |
13 | 6.5 - 7 | M - N | 17 | 53.4 |
14 | 7 - 7.5 | N - O | 17 1/3 | 54.5 |
15 | 7.5 - 8 | O - P | 17 2/3 | 55.5 |
16 | 8 | P | 18 | 56.6 |
17 | 8.5 | Q | 18 1/3 | 57.6 |