To determine your ring size, find a piece of string or cut a strip of paper that can wrap around the circumference of your finger. Make sure it’s comfortably tight and mark the spot where the string or paper strip meets. Measure the distance with a ruler in millimeters to get the circumference of your finger. You’ll be able to match your ring size using the table below:

 Finger Circumference Ring Size (US)
43-45mm Size 3
45-47mm Size 4
48-50mm Size 5
50-53mm Size 6
53-55mm Size 7
55-58mm Size 8
58-60mm Size 9
60-63mm Size 10


For rings listed as either size small or large, small is around a Size 6.5, and large is around a Size 7.5.