Ring Size
|
Circumference (mm) |
Inner Diameter (mm) |
US | UK | EU | Japan | Hong Kong | Switzerland |
| 49.3 | 15.7 | 5 | J 1/2 | 49 | 9 | 11 | 9.5 |
| 51.2 | 16.5 | 6 | L 1/2 | 52 | 11 | 13 | 12.75 |
| 54.4 | 17.3 | 7 | N 1/2 | 54 | 14 | 16 | 15.25 |
| 57 | 18.2 | 8 | P 1/2 | 57 | 16.25 | 18 | 18.25 |
|
Circumference (mm) |
Inner Diameter (mm) |
US | UK | EU | Japan | Hong Kong | Switzerland |
| 49.3 | 15.7 | 5 | J 1/2 | 49 | 9 | 11 | 9.5 |
| 51.2 | 16.5 | 6 | L 1/2 | 52 | 11 | 13 | 12.75 |
| 54.4 | 17.3 | 7 | N 1/2 | 54 | 14 | 16 | 15.25 |
| 57 | 18.2 | 8 | P 1/2 | 57 | 16.25 | 18 | 18.25 |