RING SIZE CHART
| "Circumference (mm) Europe / ISO" | Diameter (mm) | USA / Canada | UK / Australia |
| 44.2 | 14.1 | 3 | F |
| 45.5 | 14.5 | 3-1/2 | G |
| 46.8 | 14.9 | 4 | H |
| 48 | 15.3 | 4-1/2 | I |
| 49.3 | 15.7 | 5 | J-1/2 |
| 50.6 | 16.1 | 5-1/2 | K-1/2 |
| 51.9 | 16.5 | 6 | L-1/2 |
| 53.1 | 16.9 | 6-1/2 | M-1/2 |
| 54.4 | 17.3 | 7 | N-1/2 |
| 55.7 | 17.7 | 7-1/2 | O-1/2 |
| 57 | 18.1 | 8 | P-1/2 |
| 58.3 | 18.5 | 8-1/2 | Q-1/2 |
| 59.5 | 19 | 9 | R-1/2 |
| 60.8 | 19.4 | 9-1/2 | S-1/2 |
| 62.1 | 19.8 | 10 | T-1/2 |
| 63.4 | 20.2 | 10-1/2 | U-1/2 |
| 64.6 | 20.6 | 11 | V-1/2 |
| 65.9 | 21 | 11-1/2 | W-1/2 |
| 67.2 | 21.4 | 12 | X-1/2 |
| 68.5 | 21.8 | 12-1/2 | Z |