If you have a ring that already fits your finger well, you can use a ruler to measure the inside diameter of your ring.
| Ring Size | Ring Diameter |
|---|---|
| 4 | 0.58 in / 14.04 mm |
| 5 | 0.61 in / 15.7 mm |
| 6 | 0.64 in / 16.51 mm |
| 7 | 0.68 in / 17.32 mm |
| 8 | 0.71 in / 18.14 mm |
| 9 | 0.74 in / 18.95 mm |
| 10 | 0.77 in / 19.76 mm |
| 11 | 0.81 in / 20.57 mm |
| 12 | 0.84 in / 21.39 mm |
| size | CIRCUMFERENCE |
|---|---|
| 4 | 1.83 in / 46.48 mm |
| 5 | 1.94 in / 49.3 mm |
| 6 | 2.03 in / 51.56 mm |
| 7 | 2.14 in / 54.32 mm |
| 8 | 2.24 in / 56.36 mm |
| 9 | 2.34 in / 56.90 mm |
| 10 | 2.44 in / 59.44 mm |
| 11 | 2.54 in / 64.52 mm |
| 12 | 2.64 in / 67.06 mm |
| Length (IN) | Length (CM) |
|---|---|
| 16.53 | 42 |
| 17.71 | 45 |
| 23.62 | 60 |
| 27.56 | 70 |
| 31.5 | 80 |
