Ring Size Chart
| Diameter (mm) | Circumference (mm) | US | UK | French/German | Italian |
| 15.1 | 47.44 | 4 | H½ | 47.5 | 7.5 |
| 15.3 | 48.07 | 4.25 | I | 48 | 8 |
| 15.5 | 48.69 | 4.5 | I½ | 48.5 | 8.5 |
| 15.7 | 49.32 | 4.75 | J | 49.5 | 9.5 |
| 15.9 | 49.95 | 5 | J½ | 50 | 10 |
| 16.1 | 50.58 | 5.25 | K | 50.5 | 10.5 |
| 16.3 | 51.21 | 5.5 | K½ | 51 | 11 |
| 16.5 | 51.84 | 5.75 | L | 52 | 12 |
| 16.7 | 52.46 | 6 | L½ | 52.5 | 12.5 |
| 16.9 | 53.09 | 6.25 | M | 53 | 13 |
| 17.1 | 53.72 | 6.5 | M½ | 54 | 14 |
| 17.3 | 54.35 | 6.75 | N | 54.5 | 14.5 |
| 17.5 | 54.98 | 7 | N½ | 55 | 15 |
| 17.7 | 55.61 | 7.25 | O | 55.75 | 15.75 |
| 17.9 | 56.23 | 7.5 | O½ | 56.25 | 16.25 |
| 18.1 | 56.86 | 7.75 | P | 57 | 17 |
| 18.3 | 57.49 | 8 | P½ | 57.25 | 17.25 |
| 18.5 | 58.12 | 8.25 | Q | 58 | 18 |
| 18.7 | 58.75 | 8.5 | Q½ | 58.5 | 18.5 |
| 18.9 | 59.38 | 8.75 | R | 59.5 | 19.5 |
| 19.1 | 60 | 9 | R½ | 60 | 20 |
| 19.3 | 60.63 | 9.25 | S | 60.5 | 20.5 |
| 19.5 | 61.26 | 9.5 | S½ | 61.25 | 21.25 |
| 19.7 | 61.89 | 9.75 | T | 62 | 22 |
| 19.9 | 62.52 | 10 | T½ | 62.5 | 22.5 |
| 20.1 | 63.15 | 10.5 | U | 63 | 23 |
| 20.3 | 63.77 | 10.5 | U½ | 64 | 24 |
| 20.5 | 64.4 | 10.75 | V | 64.25 | 24.25 |
| 20.7 | 65.03 | 11 | V½ | 65 | 25 |
Tips:
- Please measure your finger when they are warm as cold fingers will measure smaller.
- If you are unsure, we advise you to purchase a ring sizer (or ask a friend who has one) to measure your finger before making an order.