1. If using a desktop computer you can determine your ring size by using a ring that already fits you. Just place the ring over the nearest sized circle. The inner edge of the ring should align with the outer edge of the circle. If your ring seems to fit between two sizes, then opt for the larger size:

If you’re not using a desktop you can use the alternative method listed in step two and determining the size based on the measurements seen below each ring circle. 

  1.  Measure the inner diameter of your ring with a ruler as shown on the picture: