Ring Size Guide
| SIZE | INTERNAL DIAMETER (MM) |
|---|---|
| 12 | 16.5 |
| 14 | 17.2 |
| 16 | 17.8 |
| 18 | 18.4 |
| 20 | 19.1 |
| 22 | 19.7 |
Size conversion
| SIZE | SPAIN | EUROPE | CIRCUMFERENCE (MM) | U.S. | U.K. |
|---|---|---|---|---|---|
| 12 | 12 | 52 | 52 | 6 | M |
| 14 | 14 | 54 | 54 | 7 | O |
| 16 | 16 | 56 | 56 | 7.75 | P1/2 |
| 18 | 18 | 58 | 58 | 8.5 | R |
| 20 | 20 | 60 | 60 | 9.5 | S |
| 22 | 22 | 62 | 62 | 10 | T1/2 |
