Help
Find your ring size
Two easy ways to measure at home. Between two sizes? Choose the larger one.
With a ring that fits
Measure the inside diameter of a ring that fits the right finger, edge to edge, in millimeters. Find the closest diameter below.
With a strip of paper
Wrap a thin strip of paper around the base of your finger, mark where it overlaps, and measure the length in millimeters. That's the circumference.
| U.S. size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.9 | 46.8 |
| 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 |
| 12 | 21.4 | 67.2 |
| 13 | 22.2 | 69.7 |
Tips
- Measure at the end of the day, when fingers are largest.
- Wide bands fit snugger — go up a quarter to half size for bands wider than 6 mm.
- Most women's engagement rings are size 5–7; men's rings 9–11.
Not sure? Book a phone or video consultation and we'll walk you through measuring — we confirm your size with you before your order is finalized.