sizing chart

Ring
Size		 Ring
Diameter		 Ring Circumference
4 14.8 mm 46.5 mm
4.5 15.2 mm 47.8 mm
5 15.6 mm 49.0 mm
5.5 16.0 mm 50.3 mm
6 16.5 mm 51.8 mm
6.5 16.9 mm 53.1 mm
7 17.3 mm 54.3 mm
7.5 17.7 mm 55.6 mm
8 18.2 mm 57.2 mm
8.5 18.6 mm 58.4 mm
9 19.0 mm 59.7 mm
9.5 19.4 mm 60.9 mm
10 19.8 mm 62.2 mm
10.5 20.2 mm 63.5 mm
11 20.6 mm 64.7 mm
11.5 21.0 mm 66.0 mm
12 21.4 mm 67.2 mm
12.5 21.8 mm 68.5 mm
13 22.2 mm 69.7 mm
13.5 22.6 mm 71.0 mm