Find Your Ring Size
Use our calculator to find your perfect ring size
How to measure:
1. Take a ring that fits you well
2. Measure the inside diameter in millimeters
3. Enter the measurement below
1. Take a ring that fits you well
2. Measure the inside diameter in millimeters
3. Enter the measurement below
How to measure:
1. Wrap a string or paper around your finger
2. Mark where it overlaps
3. Measure the length in millimeters
4. Enter the measurement below
1. Wrap a string or paper around your finger
2. Mark where it overlaps
3. Measure the length in millimeters
4. Enter the measurement below
| US/CA | UK/AU | EU | JP | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|---|
| 3 | F | 44 | 4 | 14.1 | 44.2 |
| 3.5 | G | 45 | 5 | 14.5 | 45.5 |
| 4 | H | 46 | 6 | 14.9 | 46.8 |
| 4.5 | I | 47 | 7 | 15.3 | 48.0 |
| 5 | J | 48 | 8 | 15.7 | 49.3 |
| 5.5 | K | 49 | 9 | 16.1 | 50.6 |
| 6 | L | 51 | 11 | 16.5 | 51.9 |
| 6.5 | M | 52 | 13 | 16.9 | 53.1 |
| 7 | N | 54 | 14 | 17.3 | 54.4 |
| 7.5 | O | 55 | 15 | 17.7 | 55.7 |
| 8 | P | 56 | 16 | 18.1 | 57.0 |
| 8.5 | Q | 57 | 17 | 18.5 | 58.3 |
| 9 | R | 59 | 18 | 19.0 | 59.5 |
| 9.5 | S | 60 | 19 | 19.4 | 60.8 |
| 10 | T | 61 | 20 | 19.8 | 62.1 |
| 10.5 | U | 62 | 21 | 20.2 | 63.4 |
| 11 | V | 64 | 23 | 20.6 | 64.6 |
| 11.5 | W | 65 | 24 | 21.0 | 65.9 |
| 12 | X | 66 | 25 | 21.4 | 67.2 |