Ring Sizing Guide
How to Measure Your Ring Size
There are two easy ways to find your size:
Option 1: Use a Ring You Already Own
- Choose a ring that fits the finger you’re buying for.
- Measure the inner diameter in millimeters using a ruler or caliper.
- Match your measurement to the chart below.
Option 2: Measure Your Finger Directly
- Wrap a thin strip of paper or string around your finger where the ring will sit.
- Mark where the ends meet and measure the length in millimeters.
- Use the circumference to find your size in the chart below.
Tip: Measure at the end of the day, when your fingers are warm, for the most accurate fit.
International Ring Size Conversion Chart
| US Size | Diameter (mm) | Circumference (mm) | UK Size | EU Size | Japan Size |
|---|---|---|---|---|---|
| 4 | 14.8 | 46.5 | H | 47 | 7 |
| 5 | 15.7 | 49.3 | J½ | 49 | 9 |
| 6 | 16.5 | 51.9 | L½ | 52 | 12 |
| 7 | 17.3 | 54.4 | N½ | 54 | 14 |
| 8 | 18.1 | 57.0 | P½ | 57 | 16 |
| 9 | 19.0 | 59.5 | R½ | 59 | 18 |
| 10 | 19.8 | 62.1 | T½ | 62 | 20 |
| 11 | 20.6 | 64.6 | V½ | 64 | 23 |
| 12 | 21.4 | 67.2 | X½ | 67 | 25 |
| 13 | 22.2 | 69.7 | Z½ | 70 | 27 |
Do you need a different size, or are you unsure what works best? Many of our rings can be resized—just contact us, and we’ll be happy to help.