Determine ring size
Below you will find a chart for the ring sizes. The chart shows which size belongs to which diameter and circumference. After the chart you can read about some useful tips of how to idetify the correct ring size.
| Ring size Europe | Diameter (mm) | Circumference (mm) | Ring size (U.S.A.) |
| 16 | 16 | 50 | 5,5 |
| 16,25 | 16,25 | 51 | |
| 16,5 | 16,5 | 52 | 6 |
| 17 | 17 | 53 | 6,5 |
| 17,25 | 17,25 | 54 | 7 |
| 17,5 | 17,5 | 55 | 7,5 |
| 18 | 18 | 56 | 8 |
| 18,25 | 18,25 | 57 | |
| 18,5 | 18,5 | 58 | 8,5 |
| 19 | 19 | 59 | 9 |
| 19,25 | 19,25 | 60 | |
| 19,5 | 19,5 | 61 | 9,5 |
| 19,75 | 19,75 | 62 | 10 |
| 20 | 20 | 63 | 10,5 |
| 20,25 | 20,25 | 64 | |
| 20,5 | 20,5 | 65 | 11 |
| 21 | 21 | 66 | 11,5 |
Measure ring size
If you plan to buy a ring for yourself or someone else, it is important to know the right ring size. A convenient way to calculate the circumference of your finger yourself is to wrap the rope around your finger and measure the number of millimeters with a measuring tape. The length of the ribbon is the circumference of your finger. Check the table below to see which ring size best fits your circumference.
Compare the ring size with an existing ring
Print this page and place the ring you wear frequently on the circles shown. Make sure that the inner circumference of the ring is flush with the outer edge of the circle. You are also welcome to visit one of the GASSAN stores to measure your ring size.