Ring Sizes
Ring Size Chart
| Inside Diameter (mm) | Inside Circumference (mm) | USA & Canada | UK, Ireland, Australia, New Zealand | Europe | Japan | China |
|---|---|---|---|---|---|---|
| 14.1 | 44.2 | 3 | F | 44 | 4 | 4 |
| 14.5 | 45.5 | 3.5 | G | 45.5 | 5 | 5 |
| 14.9 | 46.8 | 4 | H | 47 | 6 | 6 |
| 15.3 | 48.0 | 4.5 | I | 48 | 7 | 7 |
| 15.7 | 49.3 | 5 | J | 49 | 8 | 8 |
| 16.1 | 50.6 | 5.5 | K | 50 | 9 | 9 |
| 16.5 | 51.9 | 6 | L | 51.5 | 10 | 10 |
| 16.9 | 53.1 | 6.5 | M | 53 | 12 | 12 |
| 17.3 | 54.4 | 7 | N | 54 | 13 | 13 |
| 17.7 | 55.7 | 7.5 | O | 55 | 14 | 14 |
| 18.1 | 57.0 | 8 | P | 56.5 | 16 | 16 |
| 18.5 | 58.3 | 8.5 | Q | 58 | 17 | 17 |
| 19.0 | 59.5 | 9 | R | 59 | 18 | 18 |
| 19.4 | 60.8 | 9.5 | S | 60 | 19 | 19 |
| 19.8 | 62.1 | 10 | T | 61 | 20 | 20 |
| 20.2 | 63.4 | 10.5 | U | 62 | 22 | 22 |
| 20.6 | 64.6 | 11 | V | 63 | 23 | 23 |
| 21.0 | 65.9 | 11.5 | W | 65 | 24 | 24 |
| 21.4 | 67.2 | 12 | X | 66 | 25 | 25 |
| 21.8 | 68.5 | 12.5 | Y | 67 | 27 | 27 |
| 22.2 | 69.7 | 13 | Z | 68 | 28 | 28 |