| Ring Size | Circumference (mm) | Ring Size | Circumference (mm) | Ring Size | Circumference (mm) |
|---|---|---|---|---|---|
| A | 37.8 | J | 48.7 | S | 60.2 |
| B | 39.1 | K | 50 | T | 61.4 |
| C | 40.4 | L | 51.2 | U | 62.7 |
| D | 41.7 | M | 52.5 | V | 64 |
| E | 42.9 | N | 53.8 | W | 65.3 |
| F | 44.2 | O | 55.1 | X | 66.6 |
| G | 45.5 | P | 56.3 | Y | 67.8 |
| H | 46.8 | Q | 57.6 | Z | 68.5 |
| I | 48 | R | 58.9 |
