Ring size chart
| US | UK | EU | Japan | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|---|
| 4 | H | 46.5 | 7 | 14.9 | 46.8 |
| 4.5 | I | 47.5 | 8 | 15.3 | 48.0 |
| 5 | J | 49 | 9 | 15.7 | 49.3 |
| 5.5 | K | 50 | 10 | 16.1 | 50.6 |
| 6 | L | 51.5 | 11 | 16.5 | 51.9 |
| 6.5 | M | 52.5 | 12 | 16.9 | 53.1 |
| 7 | N | 54 | 13 | 17.3 | 54.4 |
| 7.5 | O | 55.5 | 14 | 17.7 | 55.7 |
| 8 | P | 57 | 15 | 18.1 | 57.0 |
| 8.5 | Q | 58 | 16 | 18.5 | 58.2 |
| 9 | R | 59.5 | 17 | 18.9 | 59.5 |
| 9.5 | S | 60.5 | 18 | 19.4 | 60.8 |
| 10 | T | 62 | 19 | 19.8 | 62.1 |
| 10.5 | U | 63 | 20 | 20.2 | 63.4 |
| 11 | V | 64.5 | 21 | 20.6 | 64.6 |
| 11.5 | W | 65.5 | 22 | 21.0 | 65.9 |
| 12 | X | 67 | 23 | 21.4 | 67.2 |
| 12.5 | Y | 68 | 24 | 21.8 | 68.5 |
| 13 | Z | 69.5 | 25 | 22.2 | 69.7 |
Not sure how to get your number? See how to measure your ring size.
Frequently asked questions
Is circumference or diameter better?
Either works; circumference from string is easiest.