Ring size guide
Finding your size
Borrow a ring
A ring you already wear on that finger (or the same finger on the other hand) tells you most of what you need. Measure its inside diameter in millimeters and look it up in the table below.
Get sized at a local jeweler
Any jeweler can measure a finger in a few minutes; tell us the US size they give you.
| US size | Inside diameter (mm) | Inside circumference (mm) |
|---|---|---|
| 3 | 14.05 | 44.14 |
| 3.5 | 14.45 | 45.40 |
| 4 | 14.86 | 46.68 |
| 4.5 | 15.27 | 47.97 |
| 5 | 15.70 | 49.32 |
| 5.5 | 16.10 | 50.58 |
| 6 | 16.51 | 51.87 |
| 6.5 | 16.92 | 53.16 |
| 7 | 17.35 | 54.51 |
| 7.5 | 17.75 | 55.76 |
| 8 | 18.19 | 57.15 |
| 8.5 | 18.53 | 58.21 |
| 9 | 18.89 | 59.34 |
| 9.5 | 19.41 | 60.98 |
| 10 | 19.84 | 62.33 |
| 10.5 | 20.20 | 63.46 |
| 11 | 20.68 | 64.97 |
| 11.5 | 21.08 | 66.22 |
| 12 | 21.49 | 67.51 |
| 12.5 | 21.89 | 68.77 |
| 13 | 22.33 | 70.15 |
General guidance only: charts differ slightly between sources. If you land between two sizes, contact us for guidance based on how you wear your rings, the ring's style, and whether you plan to stack it or choose a wider band.