Ring Size Conversion Chart
RING SIZE CONVERSION CHART
| USA, CAN | IRE, UK, AUS |
Inside Diameter (mm) |
Circumference (mm) |
|---|---|---|---|
| 3 | F | 14.1 | 44.2 |
| 3.5 | G | 14.5 | 45.4 |
| 4 | H | 14.9 | 46.7 |
| 4.5 | I | 15.3 | 48 |
| 5 | J | 15.7 | 49.3 |
| 5.5 | K | 16.1 | 50.6 |
| 6 | L | 16.5 | 51.9 |
| 6.5 | M | 16.9 | 53.2 |
| 7 | N | 17.3 | 54.5 |
| 7.5 | O | 17.7 | 55.8 |
| 8 | P | 18.2 | 57.2 |
| 8.5 | Q | 18.5 | 58.2 |
| 9 | R | 18.9 | 59.3 |
| 9.5 | S | 19.4 | 61 |
| 10 | T | 19.8 | 62.3 |
| 10.5 | U | 20.2 | 63.5 |
| 11 | V | 20.7 | 65 |
| 11.5 | W | 21.1 | 66.2 |
| 12 | X | 21.5 | 67.5 |
| 12.5 | Y | 21.9 | 68.8 |
| 13 | Z | 22.3 | 70.2 |
| 14 | Z + 2 | 22.7 | 71.3 |
