Ring Size
|
Circumference (mm) |
Diameter (mm) |
U.S | U.K | China |
| 49.3 | 15.7 | 5 | J 1/2 | 9 |
| 51.8 | 16.5 | 6 | M | 12 |
| 54.4 | 17.3 | 7 | O | 14 |
| 56.9 | 18.1 | 8 | Q | 16 |
| 59.5 | 18.9 | 9 | S | 18 |
| 62.1 | 19.8 | 10 | J 1/2 | 20 |
| 64.6 | 20.6 | 11 | V 1/2 | 23 |
| 67.2 | 21.4 | 12 | Y | 25 |
|
Circumference (mm) |
Diameter (mm) |
U.S | U.K | China |
| 49.3 | 15.7 | 5 | J 1/2 | 9 |
| 51.8 | 16.5 | 6 | M | 12 |
| 54.4 | 17.3 | 7 | O | 14 |
| 56.9 | 18.1 | 8 | Q | 16 |
| 59.5 | 18.9 | 9 | S | 18 |
| 62.1 | 19.8 | 10 | J 1/2 | 20 |
| 64.6 | 20.6 | 11 | V 1/2 | 23 |
| 67.2 | 21.4 | 12 | Y | 25 |