At GULDVIVA we use the inner diameter of the ring to measure and describe the size of our rings. Below you will find a guideline chart for how you can convert to other size measurements. You can also contact us with any questions about sizes at info@guldviva.com
Rings can be difficult to buy online, which is why we always offer one complimentary resizing within one (1) month of purchase.
| Diameter | Circumference | Approx | ||||
| mm | inches | mm | inches | DK / EU size | US Size | UK Size |
| 15 | 0.59 | 47.1 | 1.86 | 47 | ||
| 15.25 | 0.60 | 47.9 | 1.89 | 48 | 4.5 | I 1/2 |
| 15.5 | 0.61 | 48.7 | 1.92 | 49 | ||
| 15.75 | 0.62 | 49.5 | 1.95 | 49 | ||
| 16 | 0.63 | 50.3 | 1.98 | 50 | 5.5 | J 1/2 |
| 16.25 | 0.64 | 51.1 | 2.01 | 51 | ||
| 16.5 | 0.65 | 51.8 | 2.04 | 52 | 6 | M |
| 16.75 | 0.66 | 52.6 | 2.07 | 53 | 6.5 | N |
| 17 | 0.67 | 53.4 | 2.10 | 53 | ||
| 17.25 | 0.68 | 54.2 | 2.13 | 54 | 7 | O |
| 17.5 | 0.69 | 55.0 | 2.16 | 55 | 7 1/2 | P |
| 17.75 | 0.70 | 55.8 | 2.20 | 56 | ||
| 18 | 0.71 | 56.5 | 2.23 | 57 | ||
| 18.25 | 0.72 | 57.3 | 2.26 | 57 | 8 | Q |
| 18.5 | 0.73 | 58.1 | 2.29 | 58 | 8 1/2 | Q 1/2 |
| 18.75 | 0.74 | 58.9 | 2.32 | 59 | ||
| 19 | 0.75 | 59.7 | 2.35 | 60 | 9 | R 1/2 |
| 19.25 | 0.76 | 60.5 | 2.38 | 60 | 9.5 | S 1/2 |
| 19.5 | 0.77 | 61.3 | 2.41 | 61 | ||
| 19.75 | 0.78 | 62.0 | 2.44 | 62 | 10 | T 1/2 |
| 20 | 0.79 | 62.8 | 2.47 | 63 | 10 1/2 | U 1/2 |
| 20.25 | 0.80 | 63.6 | 2.50 | 64 | ||
| 20.5 | 0.81 | 64.4 | 2.54 | 64 | 11 | V 1/2 |
| 20.75 | 0.82 | 65.2 | 2.57 | 65 | ||
| 21 | 0.83 | 66.0 | 2.60 | 66 | 11 1/2 | W 1/2 |
| 21.25 | 0.84 | 66.8 | 2.63 | 67 | 12 | Y |
| 21.5 | 0.85 | 67.5 | 2.66 | 68 | ||
| 21.75 | 0.86 | 68.3 | 2.69 | 68 | ||
| 22 | 0.87 | 69.1 | 2.72 | 69 | 13 1/2 | Z + 1.5 |