Ring Size Chart
| Size (US) | Circumference (mm) |
Diameter (mm) |
| 3 | 44.2 | 14.1 |
| 3.5 | 45.5 | 14.5 |
| 4 | 46.8 | 14.9 |
| 4.5 | 48 | 15.3 |
| 5 | 49.3 | 15.7 |
| 5.5 | 50.6 | 16.1 |
| 6 | 51.9 | 16.5 |
| 6.5 | 53.1 | 16.9 |
| 7 | 54.4 | 17.3 |
| 7.5 | 55.7 | 17.7 |
| 8 | 57 | 18.1 |
| 8.5 | 58.3 | 18.5 |
| 9 | 59.5 | 18.9 |
| 9.5 | 60.8 | 19.3 |
| 10 | 62.1 | 19.7 |
| 10.5 | 63.4 | 20.1 |
| 11 | 64.6 | 20.5 |
| 11.5 | 65.9 | 20.9 |
| 12 | 67.2 | 21.3 |
| 12.5 | 68.5 | 21.7 |
| 13 | 69.7 | 22.1 |
| 13.5 | 71 | 22.5 |
| 14 | 72.3 | 22.9 |