Ring size guide
Ring sizes displayed on this website are standard Australian sizes.
For ring sizes used in other countries, please use our ring size conversion guide below.
| Australia / UK | USA | Japan | Circumference (mm) |
|---|---|---|---|
| J | 4+ | 48.7 | |
| J+ | 5 | 9 | 49.3 |
| K | 5+ | 49.9 | |
| K+ | 5+ | 10 | 50.6 |
| L | 5+ | 51.2 | |
| L+ | 6 | 11 | 51.8 |
| M | 6+ | 12 | 52.5 |
| M+ | 6+ | 13 | 53.1 |
| N | 6+ | 53.8 | |
| N+ | 7 | 14 | 54.4 |
| O | 7+ | 55.0 | |
| O+ | 7+ | 15 | 55.7 |
| P | 7+ | 56.3 | |
| P+ | 8 | 16 | 56.9 |
| Q | 8+ | 57.6 | |
| Q+ | 8+ | 17 | 58.2 |
| R | 8+ | 58.9 | |
| R+ | 9 | 18 | 59.5 |
| S | 9+ | 60.1 | |
| S+ | 9+ | 19 | 60.8 |
| T | 9+ | 61.4 | |
| T+ | 10 | 20 | 62.1 |
| U | 10+ | 21 | 62.7 |
| U+ | 10+ | 22 | 63.3 |
| V | 10+ | 64.0 | |
| V+ | 11 | 23 | 64.6 |
| W | 11+ | 65.2 | |
| W+ | 11+ | 24 | 65.9 |
| X | 11+ | 66.5 | |
| X+ | 12 | 25 | 67.2 |
| Y | 12+ | 67.8 | |
| Z | 12+ | 68.4 |