Size Guide
- Wrap a thin strip of paper or string around the base of your finger (we recommend measuring in the evening when fingers are at their largest).
- Mark where the ends meet and measure the length in millimeters — this is your finger circumference.
- Use the chart below to find your corresponding size.
Ring Size Conversion Chart
| Diameter (mm) | Circumference (mm) | US / Canada | UK / Australia | Europe (EU) | Japan / China | Switzerland |
|---|---|---|---|---|---|---|
| 14.1 | 44.2 | 3 | F | 44 | 4 | 4 |
| 14.5 | 45.5 | 3½ | G | 45.5 | 5 | 5 |
| 14.9 | 46.8 | 4 | H | 47 | 7 | 6 |
| 15.3 | 48.0 | 4½ | I | 48 | 8 | 7 |
| 15.7 | 49.3 | 5 | J½ | 49 | 9 | 8 |
| 16.1 | 50.6 | 5½ | K½ | 50.5 | 10 | 9 |
| 16.5 | 51.9 | 6 | L½ | 52 | 12 | 10 |
| 16.9 | 53.1 | 6½ | M½ | 53 | 13 | 11 |
| 17.3 | 54.4 | 7 | N½ | 54 | 14 | 12 |
| 17.7 | 55.7 | 7½ | O | 55.5 | 15 | 13 |
| 18.1 | 57.0 | 8 | P | 57 | 16 | 14 |
| 18.5 | 58.3 | 8½ | Q | 58 | 17 | 15 |
| 18.9 | 59.5 | 9 | R | 59.5 | 18 | 16 |
| 19.4 | 60.8 | 9½ | S | 61 | 20 | 17 |
| 19.8 | 62.1 | 10 | T | 62 | 21 | 18 |
| 20.2 | 63.4 | 10½ | U | 63 | 22 | 19 |
| 20.6 | 64.6 | 11 | V | 64.5 | 23 | 20 |
| 21.0 | 65.9 | 11½ | W | 66 | 24 | 21 |
| 21.4 | 67.2 | 12 | X | 67 | 25 | 22 |
| 21.8 | 68.5 | 12½ | Y | 68.5 | 26 | 23 |
| 22.2 | 69.7 | 13 | Z | 70 | 27 | 24 |
* The above data is for reference only. Sizing may vary slightly between brands. We recommend trying rings in-store for the most accurate fit.