Ring Size Guide
To determine your ring size, find a ring you have recently worn on the finger you're intending to size. Lay the ring against a ruler or measuring tape in millimeters to measure the inside diameter of the ring. This is shown on the picture on this page.
Use the chart below to translate your measurement into a ring size.
For example, if the ring diameter is 18 mm, the ring size is 17.
Translation table for ring sizes
Size
Diameter
Circumference
1
13.05 mm
41 mm
3
13.69 mm
43 mm
5
14.32 mm
45 mm
7
14.96 mm
47 mm
9
15.60 mm
49 mm
11
16.23 mm
51 mm
13
16.87 mm
53 mm
15
17.51 mm
55 mm
17
18.14 mm
57 mm
