Ring size the chart we use:
| Diameter(mm) | US & Canada | Europe | UK & Australia | Hong Kong |
| 14.5 | 3 1/2 | G 1/2 | 7 | |
| 14.7 | 46 | H | 7.5 | |
| 14.9 | 4 | 47 | H 1/2 | 8 |
| 15.1 | I | 8.5 | ||
| 15.3 | 4 1/2 | 48 | I 1/2 | 9.5 |
| 15.5 | J | 10 | ||
| 15.7 | 5 | 49 | J 1/2 | 10.5 |
| 15.9 | 50 | K | 11 | |
| 16.1 | 5 1/2 | K 1/2 | 11.5 | |
| 16.3 | 51 | L | 12 | |
| 16.5 | 6 | 52 | L 1/2 | 12.5 |
| 16.7 | M | 13.5 | ||
| 16.9 | 6 1/2 | 53 | M 1/2 | 14 |
| 17.1 | N | 14.5 | ||
| 17.3 | 7 | 54 | N 1/2 | 15 |
| 17.5 | 55 | O | 15.5 | |
| 17.7 | 7 1/2 | O 1/2 | 16 | |
| 17.9 | 56 | P | 16.5/17 | |
| 18.1 | 8 | 57 | P 1/2 | 17.5 |
| 18.2 | 18 | |||
| 18.3 | Q | |||
| 18.5 | 8 1/2 | 58 | Q 1/2 | 18.5 |
| 18.8 | 59 | R | 19 | |
| 19 | 9 | R 1/2 | 19.5 | |
| 19.2 | 60 | S | 20 | |
| 19.4 | 9 1/2 | 61 | S 1/2 | 20.5 |
| 19.6 | T | 21 | ||
| 19.8 | 10 | 62 | T 1/2 | 22 |
| 20 | U | 22.5 | ||
| 20.2 | 10 1/2 | 63 | U 1/2 | 23 |
| 20.4 | 64 | V | 23.5 | |
| 20.6 | 11 | V 1/2 | 24.5 |
