Ring size
Your size,
or hers.
- Measure a ring already worn on that finger: the inside diameter in millimeters. Then match it below.
- Borrow a ring for an evening, trace the inside on paper, then measure across the circle.
- Not sure at all? Choose “Not sure — we'll help” and we'll talk it through.
| US size | Inside diameter, mm |
|---|---|
| 3 | 14.0 |
| 3.5 | 14.4 |
| 4 | 14.8 |
| 4.5 | 15.2 |
| 5 | 15.6 |
| 5.5 | 16.0 |
| 6 | 16.5 |
| 6.5 | 16.9 |
| 7 | 17.3 |
| 7.5 | 17.7 |
| 8 | 18.1 |
| 8.5 | 18.5 |
| 9 | 19.0 |