Diameter in mm |
Diameter in inches |
Circumference in mm |
Ring Size ( |
22.33 |
0.879 |
69.1 |
13.0 |
21.89 |
0.862 |
67.9 |
12.5 |
21.49 |
0.846 |
66.6 |
12.0 |
21.08 |
0.830 |
65.3 |
11.5 |
20.68 |
0.814 |
64.1 |
11.0 |
20.2 |
0.797 |
62.8 |
10.5 |
19.84 |
0.781 |
61.6 |
10.0 |
19.41 |
0.764 |
60.3 |
9.5 |
18.89 |
0.748 |
59.1 |
9.0 |
18.53 |
0.732 |
57.8 |
8.5 |
18.19 |
0.716 |
56.6 |
8.0 |
17.75 |
0.699 |
55.3 |
7.5 |
17.35 |
0.683 |
54 |
7.0 |
16.92 |
0.666 |
52.8 |
6.5 |
16.51 |
0.65 |
51.5 |
6.0 |
16.1 |
0.634 |
50.3 |
5.5 |
15.7 |
0.618 |
49 |
5.0 |
15.27 |
0.601 |
47.8 |
4.5 |
14.86 |
0.585 |
46.5 |
4.0 |