Ring Sizing Guide (Metric - U.S.A & Canada)
How to Find Your Ring Size (Chart Below)
Option 1: Measure a Ring You Already Own
- Take a ring that fits the desired finger.
- Measure the inner diameter of the ring in millimeters (mm) using a ruler or caliper.
- Match the diameter measurement to the sizing chart below.
Option 2: Measure Your Finger Directly
- Cut a strip of paper or use a soft measuring tape.
- Wrap it snugly around the base of your finger (not too tight).
- Mark where the ends meet and measure the length of the strip in millimeters (this is the circumference).
- Match the circumference to the sizing chart below.
Tips for Accuracy
- Measure your finger at the end of the day, as fingers may swell.
- Avoid measuring cold fingers, as they can be smaller.
- If you’re between sizes, choose the larger size for comfort.
Ring Sizing Chart (Metric System)
| Ring Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.9 | 47.0 |
| 5 | 15.7 | 49.3 |
| 6 | 16.5 | 51.8 |
| 7 | 17.3 | 54.4 |
| 8 | 18.1 | 57.0 |
| 9 | 18.9 | 59.5 |
| 10 | 19.8 | 62.1 |
| 11 | 20.6 | 64.6 |
| 12 | 21.4 | 67.2 |
| 13 | 22.2 | 69.7 |