リングサイズ
| 日本番 |
アメリカ番 |
イギリス番 |
直径mm |
円周寸法mm |
| 1 |
1 |
C |
13 |
40.8 |
| 2 |
2 |
D |
13 1/3 |
41.9 |
| 3 |
2 1/2 |
E |
13 2/3 |
42.9 |
| 4 |
3 |
F |
14 |
44.0 |
| 5 |
3 1/2 |
G |
14 1/3 |
45.0 |
| 6 |
14 2/3 |
46.1 |
| 7 |
4 |
H |
15 |
47.1 |
| 8 |
4 1/2 |
I |
15 1/3 |
48.2 |
| 9 |
5 |
J |
15 2/3 |
49.2 |
| 10 |
5 1/2 |
K |
16 |
50.3 |
| 11 |
6 |
L |
16 1/3 |
51.3 |
| 12 |
16 2/3 |
52.4 |
| 13 |
6 1/2 |
M |
17 |
53.4 |
| 14 |
7 |
N |
17 1/3 |
54.5 |
| 15 |
7 1/2 |
O |
17 2/3 |
55.5 |
| 16 |
8 |
P |
18 |
56.6 |
| 17 |
8 1/2 |
Q |
18 1/3 |
57.6 |
| 18 |
9 |
R |
18 2/3 |
58.6 |
| 19 |
9 1/2 |
S |
19 |
59.7 |
| 20 |
10 |
T |
19 1/3 |
60.7 |
| 21 |
19 2/3 |
61.8 |
| 22 |
10 1/2 |
U |
20 |
62.8 |
| 23 |
11 |
V |
20 1/3 |
63.9 |
| 24 |
11 1/2 |
W |
20 2/3 |
64.9 |
| 25 |
12 |
X |
21 |
66.0 |
| 26 |
12 1/2 |
Y |
21 1/3 |
67.0 |
| 27 |
13 |
Z |
21 2/3 |
68.0 |
|