Ring size
| United States & Canada | UK, Europe & Australia | CN/SG/JP | HK | Switzerland | Circumference(mm) |
|---|---|---|---|---|---|
| 4 | H | 7 | 9 | 43.98 | |
| 5 | 0.5J | 9 | 11 | 47.28 | |
| 5.5 | 0.5K | 10 | 12 | 50.26 | |
| 6 | 0.5L | 11 | 13 | 12.75 | 51.83 |
| 6.5 | 0.5M | 13 | 14.5 | 14 | 53.46 |
| 7 | 0.5N | 14 | 16 | 15.25 | 55.15 |
| 8 | 0.5P | 16 | 17.75 | 56.58 | |
| 9 | 0.5R | 18 | 20.5 | 59.73 | |
| 10 | 0.5T | 20 | 23 | 62.88 | |
| 11 | 0.5V | 23 | 25 | 65.98 | |
| 12 | 0.4X | 25 | 27.75 | 27.5 | 68 |
