International Ring Sizes
| US and Canada | UK and Australia | France | Japan |
|---|---|---|---|
| 4 | H 1/2 | 7 | |
| 4.5 | I 1/2 | 8 | |
| 5 | J-J 1/2 | 9 | |
| 5.5 | K-L | 51.75 | 10 |
| 6 | M | 52.75 | 12 |
| 6.5 | M 1/2-N | 54 | 13 |
| 7 | N 1/2-O | 55.25 | 14 |
| 7.5 | O 1/2-P | 56.5 | 15 |
| 8 | P 1/2-Q | 57.75 | 16 |
| 8.5 | Q 1/2 | 17 | |
| 9 | R-R 1/2 | 18 | |
| 9.5 | S-S 1/2 | 19 | |
| 10 | T-T 1/2 | 20 | |
| 10.5 | U-U 1/2 | 22 | |
| 11 | V-V 1/2 | 23 |
