Measure your ring size
Origami and Jewelry Articles
How to measure your finger to determine your ring size.
1. Wrap a piece of string (that doesn't scratch) or paper strip around the base of your finger.
2. Mark the string or paper where it overlaps to form a complete circle.
3. Measure the length of the section of string or paper to the mark.
4. Compare your measurement with this chart to determine your ring size.
Ring size chart
| US/Canada Size | Japanese Size | |||
| Size | Measured size(mm) | Size | Measured size(mm) | |
| 1 | 40.8 | 1 | 41.8 | |
| 2 | 41.9 | 2 | 42.9 | |
| 3 | 44 | 3 | 43.9 | |
| 4 | 46.5 | 4 | 44 | |
| 4.5 | 47.8 | 5 | 45 | |
| 5 | 49 | 6 | 46.1 | |
| 5.5 | 50.3 | 7 | 47.1 | |
| 6 | 51.5 | 8 | 48.2 | |
| 6.5 | 52.8 | 9 | 49.2 | |
| 7 | 54 | 10 | 50.3 | |
| 7.5 | 55.3 | 11 | 51.3 | |
| 8 | 56.6 | 12 | 52.4 | |
| 8.5 | 57.8 | 13 | 53.4 | |
| 9 | 59.1 | 14 | 54.5 | |
| 9.5 | 60.3 | 15 | 55.5 | |
| 10 | 61.6 | 16 | 56.6 | |
| 10.5 | 62.8 | 17 | 57.6 | |
| 11 | 64.1 | 18 | 58.7 | |
| 11.5 | 65.3 | 19 | 59.7 | |
| 12 | 66.6 | 20 | 60.8 | |
| 12.5 | 67.9 | 21 | 61.8 | |
| 13 | 69.1 | 22 | 62.9 | |
| 23 | 63.9 | |||
| 24 | 65 | |||
| 25 | 66 | |||
| 26 | 67.1 | |||
| 27 | 68.1 | |||
| 28 | 69.2 |