Please note ring sizes can vary slightly within each size. All measurements are from the inner diameter of the ring.
|
Measurement
Inside Diameter |
Measurement
Inside Diameter |
|
|
SIZE
|
Inches
|
Millimeters
|
| #6 |
0.65
|
16.5
|
| #7 |
0.68
|
17.3
|
| #8 |
0.71
|
18.1
|
| #9 |
0.74
|
18.9
|
| #10 |
0.78
|
19.8
|
| #11 |
0.81
|
20.6
|
| #12 |
0.84
|
21.4
|
| #13 |
0.87
|
22.2
|
