Ring Size Guide
To know your ring size, you may take your favorite ring and measure the inside diameter in millimeters. Then refer to the below sizing guide to determine the size.
Or you can cut a piece of string, yarn, floss, or thin strip of paper to at least three inches long. Wrap one end around the base of the intended finger. Using a pen or marker, mark where the end overlaps with the rest. Lay it flat and use a ruler to measure the inside circumference which is the length between the end and your mark in millimeters. Then, use this chart below as a guide to determine your ring size.
| Ring Size | Inside Diameter (mm) | Inside Circumference (mm) |
|---|---|---|
| 3 | 14.1 | 44.2 |
| 3.5 | 14.5 | 45.5 |
| 4 | 14.9 | 46.8 |
| 4.5 | 15.3 | 48 |
| 5 | 15.7 | 49.3 |
| 5.5 | 16.1 | 50.6 |
| 6 | 16.5 | 51.9 |
| 6.5 | 16.9 | 53.1 |
| 7 | 17.3 | 54.4 |
| 7.5 | 17.7 | 55.7 |
| 8 | 18.1 | 57 |
| 8.5 | 18.5 | 58.3 |
| 9 | 19 | 59.5 |
| 9.5 | 19.4 | 60.8 |
| 10 | 19.8 | 62.1 |
