RING SIZE CHART
USA & Canada  Standard Sizes	Equivalents				Inside Diameter
Sizes	British	French	German	Japanese	MM
1½	C	40½	12¾	—	12.78
2	D	41½	13¼	2	13.21
2½	E	42¾	13¾	3	13.61
3	F	44	14	4	14.04
3½	G	45¼	14½	—	14.45
4	H½	46½	15	7	14.86
4½	I½	47¾	15¼	8	15.27
5	J½	49	15¾	9	15.7
5½	L	50¼	16	—	16.1
6	M	51½	16½	12	16.51
6¼	M ½	N/A	N/A	N/A	N/A
6½	N	52¾	17	13	16.92
7	N½	54	17¼	14	17.35
7½	O½	55½	17½	15	17.63
8	P½	56¾	18	16	18.19
8½	Q½	58	18½	17	18.59
9	R½	59¼	19	18	18.99
9½	S½	60½	19½	19	19.41
10	T½	61¾	20	20	19.84
10½	U½	62¾	20¼	22	20.24
11	V½	64¼	20¾	23	20.68
11½	W½	66	21	24	21.01
12	Y	67¼	21½	25	21.41