Size Info

Choose your ring size (inch)	Size (mm)	Diameter (mm)	Inner Circumference (inches)	Inner Circumference (mm)	Japan / Hong Kong size
1 7/8	48	15.27	1.890	48.0	8
1 15/16	49	15.70	1.941	49.3	9
2	51	16.10	2.041	51.8	11
2 1/16	52	16.51	2.066	52.5	12
2 3/16	55	17.35	2.141	54.4	14
2 1/4	56	17.75	2.192	55.7	15
2 5/16	57	18.19	2.242	56.9	16
2 3/8	58	18.53	2.292	58.2	17
2 7/16	59	18.89	2.342	59.5	18
2 1/2	61	19.41	2.393	60.8	19
2 9/16	62	19.84	2.443	62.1	20
2 5/8	63	20.20	2.493	63.3	22
2 11/16	65	20.68	2.543	64.6	23
2 3/4	66	21.08	2.594	65.9	24
2 13/16	68	21.49	2.644	67.2	25
2 7/8	69	21.89	2.694	68.4	26
2 15/16	70	22.33	2.744	69.7	27