戒指尺寸對照表
- 挑選一枚佩戴合適的戒指。
- 測量戒指內徑（單位：mm），測量時請確定直尺由 0mm 刻度開始量起。
| Circumference (mm) | Diameter (mm) | US Size | International (TW/HK) | JP/SG Size | HK Size |
| 51.9 | 16.5 | 6 | 11 | 11 | 13 |
| 53.1 | 16.9 | 6.5 | 12 | 13 | 14.5 |
| 54.4 | 17.3 | 7 | 13 | 14 | 16 |
| 55.7 | 17.7 | 7.5 | 13~14 | 15 | 17 |
| 57.0 | 18.1 | 8 | 14 | 16 | 18 |
| 58.3 | 18.5 | 8.5 | 15 | 17 | 19 |
| 59.5 | 19.0 | 9 | 16 | 18 | 20.5 |
| 60.8 | 19.4 | 9.5 | 17 | 19 | 22 |
| 62.1 | 19.8 | 10 | 18 | 20 | 23 |
| 63.4 | 20.2 | 10.5 | 18~19 | 22 | 24 |
| 64.6 | 20.6 | 11 | 19 | 23 | 25 |
| 65.9 | 21.0 | 11.5 | 20 | 24 | 26 |
| 67.2 | 21.4 | 12 | 21 | 25 | 27.75 |
