USA | UK | European |
3 | F | 44 |
- | F½ | 45 |
3½ | G | - |
4 | H | 46 |
4½ | H½ | 47 |
- | I | 48 |
5 | J | 49 |
- | J½ | 50 |
5½ | K | - |
- | K½ | 51 |
6 | L | - |
- | - | 52 |
- | L½ | - |
6½ | M | - |
- | - | 53 |
- | M½ | - |
7 | N | 54 |
- | N½ | - |
- | - | 55 |
7½ | O | - |
- | O½ | - |
- | - | 56 |
8 | P | - |
- | - | 57 |
- | P½ | - |
- | Q | - |
8½ | - | 58 |
- | Q½ | - |
- | R | 59 |
9 | - | - |
- | R½ | - |
- | - | 60 |
- | S | - |
9½ | - | - |
S½ | - | - |
- | - | 61 |
- | T | - |
10 | T½ | 62 |
- | U | - |
- | - | 63 |
10½ | U½ | - |
- | V | 64 |
- | V½ | - |
11 | - | - |
- | W | 65 |
- | W½ | - |
11½ | - | 66 |
- | X | - |
- | X½ | - |
- | - | 67 |
12 | - | - |
- | Y | - |
- | - | 68 |
- | Y½ | - |
12½ | - | - |
- | Z | 69 |
- | Z½ | - |
13 | - | - |
- | - | 70 |
Sizes within 0.01mm have been equated |