Ring Size | Diameter of ring in mm | Circumference of ring in mm |
6 | 14.7 | 46.1 |
7 | 15.1 | 47.4 |
8 | 15.3 | 48 |
9 | 15.5 | 48.7 |
10 | 15.9 | 49.9 |
11 | 16.3 | 51.2 |
12 | 16.5 | 51.8 |
13 | 16.9 | 53.1 |
14 | 17.3 | 54.4 |
16 | 17.9 | 56.3 |
18 | 18.5 | 58.2 |
19 | 18.7 | 58.9 |
20 | 19.2 | 60.1 |
22 | 19.8 | 62.1 |