Sizing guide

Ring sizing chart

Inside Diameter	Inside Circumference	Sizes
MM	MM	US & Canada
15.7	49.32	5
16.51	51.87	6
17.35	54.51	7
18.19	57.15	8
18.89	59.34	9
19.84	62.33	10
20.68	64.97	11
21.49	67.51	12

* Standard German size is expressed in inside diameter millimeters
* Standard French and Russian sizes are expressed in inside circumference millimeters