Ring Size Chart
| Supremetal Size | Ø mm | US | UK | FR / IT |
|---|---|---|---|---|
| 16 | 15.9 – 16.2 | 5.75 | K½ | 51 |
| 17 | 17.0 – 17.5 | 7.25 | O | 55 |
| 18 | 18.0 – 18.5 | 8.5 | Q | 58 |
| 19 | 19.0 – 19.5 | 9.5 | S | 61 |
| 20 | 20.0 – 20.5 | 10 | T | 63 |
| Supremetal Size | Ø mm | US | UK | FR / IT |
|---|---|---|---|---|
| 16 | 15.9 – 16.2 | 5.75 | K½ | 51 |
| 17 | 17.0 – 17.5 | 7.25 | O | 55 |
| 18 | 18.0 – 18.5 | 8.5 | Q | 58 |
| 19 | 19.0 – 19.5 | 9.5 | S | 61 |
| 20 | 20.0 – 20.5 | 10 | T | 63 |