Ring size guide
Find your US size in a couple of minutes with a ruler and a strip of paper, or a ring you already own.
Size finder
Enter your measurement in millimetres.
Your size will appear here.
Measure a ring you own
- Pick a ring that fits the finger you're buying for.
- Lay it flat on a ruler and measure straight across the inside edge, from one side to the other.
- Enter that number as the ring inside diameter in the size finder.
Measure your finger
- Wrap a thin strip of paper or string around the base of your finger.
- Mark where it overlaps. It should be snug but still slide over your knuckle.
- Lay it flat and measure up to the mark in millimetres.
- Enter that number as the finger circumference in the size finder.
Tips for the right fit
- Measure at the end of the day, when your fingers are at their largest.
- Avoid measuring when your hands are cold, as fingers shrink in the cold.
- Wide and statement rings sit tighter than thin bands, so consider going half a size up.
- Measure two or three times and use the larger reading.
Still not sure?
Our showroom is open to walk-ins, and we can size you in person. Or contact us and we'll help you work it out.
US ring size chart
| US size | Inside diameter | Circumference |
|---|---|---|
| 4 | 14.9 mm | 46.8 mm |
| 4½ | 15.3 mm | 48.0 mm |
| 5 | 15.7 mm | 49.3 mm |
| 5½ | 16.1 mm | 50.6 mm |
| 6 | 16.5 mm | 51.9 mm |
| 6½ | 16.9 mm | 53.1 mm |
| 7 | 17.3 mm | 54.4 mm |
| 7½ | 17.7 mm | 55.7 mm |
| 8 | 18.1 mm | 57.0 mm |
| 8½ | 18.5 mm | 58.2 mm |
| 9 | 18.9 mm | 59.5 mm |
| 9½ | 19.4 mm | 60.8 mm |
| 10 | 19.8 mm | 62.1 mm |
| 10½ | 20.2 mm | 63.3 mm |
| 11 | 20.6 mm | 64.6 mm |
| 11½ | 21.0 mm | 65.9 mm |
| 12 | 21.4 mm | 67.2 mm |
| 12½ | 21.8 mm | 68.5 mm |
| 13 | 22.2 mm | 69.7 mm |
| 13½ | 22.6 mm | 71.0 mm |
| 14 | 23.0 mm | 72.3 mm |
| 14½ | 23.4 mm | 73.6 mm |
| 15 | 23.8 mm | 74.8 mm |