Ring Size Guide
Find your perfect fit before ordering
Important: Tungsten rings cannot be resized. Please measure carefully — measure twice, order once.
1 Measure a Ring You Already Own
Best and most accurate method
- Find a ring that currently fits the intended finger well.
- Measure the inside diameter (straight across the center) in millimeters.
- Compare your measurement with the size chart below.
2 Use a String or Paper Strip
Use this if you don’t have a ring that fits
- Cut a thin strip of paper or use a piece of string.
- Wrap it snugly around the base of your finger (not too tight).
- Mark where the paper/string overlaps, then measure the length in millimeters. This is your circumference.
- Match the number to the chart below.
US Ring Size Chart
| US Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 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 | 57.0 |
| 8.5 | 18.5 | 58.3 |
| 9 | 19.0 | 59.5 |
| 9.5 | 19.4 | 60.8 |
| 10 | 19.8 | 62.1 |
| 10.5 | 20.2 | 63.4 |
| 11 | 20.6 | 64.6 |
| 11.5 | 21.0 | 65.9 |
| 12 | 21.4 | 67.2 |
| 12.5 | 21.8 | 68.5 |
| 13 | 22.2 | 69.7 |
| 14 | 23.0 | 72.3 |
Blue highlighted rows = our most popular sizes (7 – 12.5)
Pro Tips for the Best Fit
- Measure your finger at the end of the day — fingers are largest then.
- If you are between two sizes, we recommend going up a half size.
- Wide bands (8mm and thicker) usually feel tighter — consider sizing up half a size.
- Still unsure? Email us at services@uhbstamped.com and we’ll help you choose the right size.