Ring Size
Measure your finger with a strip of paper or string:
- Wrap it snugly around the base of your finger.
- Mark where the ends overlap.
- Measure the length in millimeters (the finger’s circumference).
- Match it to a U.S. size chart:
Tips for the best fit
- Measure your finger at the end of the day, when it’s usually largest.
- Avoid measuring when your hands are very cold or very hot.
- If your measurement falls between two sizes, it’s usually best to choose the larger size, especially for wider bands.
| US Ring Size |
Inside Diameter |
Finger Circumference |
| 5 |
15.7 mm |
49.3 mm |
| 6 |
16.5 mm |
51.8 mm |
| 7 |
17.3 mm |
54.4 mm |
| 8 |
18.1 mm |
57.0 mm |
| 9 |
19.0 mm |
59.5 mm |
| 10 |
19.8 mm |
62.1 mm |
| 11 |
20.6 mm |
64.6 mm |
| 12 |
21.4 mm |
67.2 mm |