If you're usure of your ring size then call our Perth office on +61 8 9241 6555 and request a free ring gauge, we will be more than happy to mail it to you free of charge
If you know your ring size in millimeters or US/Canadian sizes, you can use the following conversion chart.
| Inside Diameter (mm) | US/Canadian Size | British/Irish/Australian |
|---|---|---|
| 15.5 | 4 3/4 | J |
| 15.7 | 5 | J 1/2 |
| 15.9 | 5 1/4 | K |
| 16.1 | 5 1/2 | K 1/2 |
| 16.3 | 5 3/4 | L |
| 16.5 | 6 | L 1/2 |
| 16.7 | 6 1/4 | M |
| 16.9 | 6 1/2 | M 1/2 |
| 17.1 | 6 3/4 | N |
| 17.3 | 7 | N 1/2 |
| 17.5 | 7 1/4 | O |
| 17.7 | 7 1/2 | O 1/2 |
| 17.9 | 7 3/4 | P |
| 18.1 | 8 | P 1/2 |
| 18.3 | 8 1/4 | Q |
| 18.5 | 8 1/2 | Q 1/2 |
| 18.7 | 8 3/4 | R |
| 18.9 | 9 | R 1/2 |
| 19.2 | 9 1/4 | S |
| 19.4 | 9 1/2 | S 1/2 |
| 19.6 | 9 3/4 | T |