Ring Conversion

U.S. & Canada	Great Britain & Ireland	France	Germany	Japan	Switzerland
4-1/2	I-1/2	-	15-1/4	8	-
4-3/4	J	49	-	-	9
5	J-1/2	-	15-3/4	9	-
5-1/4	K	50	-	-	10
5-1/2	L	51-3/4	16	-	11-3/4
5-3/4	L-1/2	-	-	11	-
6	M	52-3/4	16-1/2	12	12-3/4
6-1/2	N	54	17	13	14
7	O	55-1/4	17-1/4	14	15-1/4
7-1/2	P	56-1/2	17-3/4	15	16-1/2
8	Q	57-3/4	18	16	17-3/4
8-1/2	-	-	18-1/2	17	-
8-3/4	R	59	-	-	19
9	-	-	19	18	-
9-1/4	S	60-1/4	-	-	20-1/4
9-1/2	-	-	19-1/2	19	-
9-3/4	T	61-1/2	-	-	21-1/2
10	T-1/2	-	20	20	...
10-1/4	U	62-3/4	-	21	22-3/4
10-1/2	U-1/2	-	20-1/4	22	-
10-3/4	V	63-3/4	-	-	23-3/4
11	V-1/2	-	20-3/4	23	-
11-1/4	W	65	-	-	25
11-1/2	-	-	21	24	-
11-3/4	X	66-1/4	-	-	26-1/4
12	Y	67-1/2	21-1/4	25	27-1/2
12-1/2	Z	68-3/4	21-3/4	26	28-3/4