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Measure your finger and find your size
according to the following table
| US RING SIZE | INCH SIZE | MM SIZE |
| 3 | 1.73 in | 44.0 mm |
| 3.5 | 1.78 in | 45.2 mm |
| 4 | 1.84 in | 47.0 mm |
| 4.5 | 1.89 in | 48.0 mm |
| 5 | 1.94 in | 49.0 mm |
| 5.5 | 1.98 in | 50.5 mm |
| 6 | 2.04 in | 51.8 mm |
| 6.5 | 2.09 in | 53.0 mm |
| 7 | 2.14 in | 54.3 mm |
| 7.5 | 2.19 in | 55.6 mm |
| 8 | 2.24 in | 56.8 mm |
| 8.5 | 2.29 in | 58.1 mm |
| 9 | 2.34 in | 59.4 mm |
| 9.5 | 2.39 in | 60.7 mm |
| 10 | 2.44 in | 61.9 mm |
| 10.5 | 2.49 in | 63.2 mm |
| 11 | 2.54 in | 64.5 mm |
| 11.5 | 2.59 in | 65.8 mm |
| 12 | 2.65 in | 67.3 mm |
| 12.5 | 2.68 in | 67.9 mm |
| 13 | 2.72 in | 69.1 mm |