Ring Sizing
When you don't know your size you can try this ring sizing conversion chart. It would be best to use a string and hold it taught around your finger to get an accurate size and mark the points where the string touches. Exchanges are possible when you have ordered the wrong size but will incur a restocking fee (refer to the OST Return Policy for more info).
|
Inside
Diameter |
Inside Diameter (mm) |
Inside Cirumference (inches) |
Inside Circumference (mm) |
USA, Canada, Mexico sizes |
|
0.602 |
15.29 |
1.89 |
48 |
4.5 |
|
0.618 |
15.7 |
1.94 |
49.3 |
5 |
|
0.634 |
16.1 |
1.99 |
50.6 |
5.5 |
|
0.65 |
16.51 |
2.04 |
51.9 |
6 |
|
0.666 |
16.92 |
2.09 |
53.1 |
6.5 |
|
0.682 |
17.32 |
2.14 |
54.4 |
7 |
|
0.698 |
17.73 |
2.19 |
55.7 |
7.5 |
|
0.714 |
18.14 |
2.24 |
57 |
8 |
|
0.73 |
18.54 |
2.29 |
58.3 |
8.5 |
|
0.746 |
18.95 |
2.34 |
59.5 |
9 |
|
0.762 |
19.35 |
2.39 |
60.8 |
9.5 |
|
0.778 |
19.76 |
2.44 |
62.1 |
10 |
|
0.794 |
20.17 |
2.49 |
63.4 |
10.5 |
|
0.81 |
20.57 |
2.54 |
64.6 |
11 |
|
0.826 |
20.98 |
2.59 |
65.9 |
11.5 |
|
0.842 |
21.39 |
2.65 |
67.2 |
12 |
|
0.858 |
21.79 |
2.7 |
68.5 |
12.5 |
|
0.874 |
22.2 |
2.75 |
69.7 |
13 |
|
0.89 |
22.61 |
2.8 |
71 |
13.5 |
|
0.906 |
23.01 |
2.85 |
72.3 |
14 |
|
0.922 |
23.42 |
2.9 |
73.6 |
14.5 |
|
0.938 |
23.83 |
2.95 |
74.8 |
15 |
Remember to take into consideration your environment and personal health when sizing a ring. Different factors will affect the size of your fingers. For example, hot weather or recent exercise can cause your fingers to swell a bit and cold weather can cause them to "shrink" a little. Also pregnancy and other hormonal differences can make your fingers swell and thus causing you to measure an incorrect size. Ideally it's best to measure in the afternoon or early evening. Always take the measurement at your finger's widest point (usually at the knuckle). It's often best to measure from a ring that you already wear and that fits properly. Measure the diameter of this ring and compare it to the sizing chart for best results.