What to do
Cut a strip of paper about 5 mm wide and 10 cm long. Wrap it snugly around the base of your finger and mark where it overlaps.
The length in millimeters = your finger circumference.
Match it with our conversion chart.
If you fall between two sizes, pick the smaller size.
If your knuckle is much larger than your finger base, measure both and choose the size in between.
What to do
Take a ring that fits well and measure its inside diameter. Place a ruler straight across the inside edges (mm).
Use our conversion chart to find the corresponding US size.
CONVERSION CHART
| US Size | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|
| 6 | 16.51 | 51.9 |
| 7 | 17.32 | 54.5 |
| 8 | 18.14 | 57.0 |
| 9 | 18.95 | 59.5 |
| 10 | 19.76 | 62.1 |
| 11 | 20.57 | 64.6 |
| 12 | 21.39 | 67.2 |
| 13 | 22.20 | 69.7 |
| 14 | 23.01 | 72.3 |
| 15 | 23.83 | 74.8 |