Size guide
How to Measure Your Ring Size at Home
All you need is a thin strip of paper or string and a ruler. Watch the guide, follow the steps, then find your number in the chart.
How to measure your ring size
- Wrap a thin strip of string or paper around the base of your finger.
- Mark where it overlaps, then measure the length in millimeters.
- Find that number in the inside circumference column of the chart below.
Already own a ring that fits?
Measure its inside diameter in millimeters and find that number in the inside diameter column of the same chart.
For an accurate reading
- Fingers are smaller in the morning and when cold, so measure at the end of the day.
- If your knuckle is larger than the base of your finger, measure both and choose a size in between.
- Wider bands (over 6 mm) typically require a half size larger.
- Between sizes? Size up for comfort. Rings can be sized down more easily than up.
- Measure the finger you'll wear the ring on. Your dominant hand is typically half a size larger.
Ring size chart
| US/Canada size | Inside diameter (mm) | Inside circumference (mm) |
|---|---|---|
| 3 | 14.0 | 44.0 |
| 3.5 | 14.4 | 45.2 |
| 4 | 14.8 | 46.5 |
| 4.5 | 15.3 | 48.0 |
| 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 |
For UK, Australian and European sizes, see the full ring size guide.
If the fit is not quite right
Every eligible piece includes one complimentary resize, with no time window; additional resizes are chargeable. Full eternity bands are made to size and cannot be resized, so measure carefully before ordering.
