Find your perfect fit.
A ring should slide over your knuckle with a little resistance and sit comfortably at the base of your finger. Here's how to find your size at home.
Not sure of your size? You can measure at home in under a minute with a piece of string and a ruler — then match your measurement to the chart below.
Measure at home
- WrapWrap a piece of string or dental floss snugly around the base of your finger.
- MarkUse a pen to mark the point where the end meets the string.
- MeasureLay the string flat and measure it against a millimetre ruler.
- MatchFind the closest circumference on the chart below to get your size.
Size chart
Measure your string in millimetres, then match it to the closest circumference below.
| US / Canada Size | Circumference (mm) | Inside Diameter (mm) |
|---|---|---|
| 4 | 46.8 | 14.9 |
| 4.5 | 48.0 | 15.3 |
| 5 | 49.3 | 15.7 |
| 5.5 | 50.6 | 16.1 |
| 6 | 51.9 | 16.5 |
| 6.5 | 53.1 | 16.9 |
| 7 | 54.4 | 17.3 |
| 7.5 | 55.7 | 17.7 |
| 8 | 57.0 | 18.1 |
| 8.5 | 58.3 | 18.5 |
| 9 | 59.5 | 18.9 |
| 9.5 | 60.8 | 19.4 |
| 10 | 62.1 | 19.8 |
| 10.5 | 63.4 | 20.2 |
| 11 | 64.6 | 20.6 |
| 11.5 | 65.9 | 21.0 |
| 12 | 67.2 | 21.4 |
A few tips
Allow enough room to comfortably slide the ring over your knuckle.
Different fingers — even on the same hand — can be different sizes, so measure the exact finger you'll wear the ring on.
Measure at the end of the day, when your fingers are at their largest.
If you're between two sizes, size up.
When in doubt, a local jeweller can measure your finger for free.