📏 Ring Size Chart

US Size Inside Diameter Circumference
5 15.7 mm 49.3 mm
6 16.5 mm 51.9 mm
7 17.3 mm 54.4 mm
8 18.1 mm 57.0 mm
9 18.9 mm 59.5 mm
10 19.8 mm 62.1 mm
11 20.6 mm 64.6 mm
12 21.4 mm 67.2 mm
13 22.2 mm 69.7 mm