Ring Guide

DIAMETER (MM)	CIRCUMFERENCE (MM)	US & CANADA	AUSTRALIA UK & IRELAND	EUROPE	SPAIN & ITALY	JAPAN
14.1	44.29	3	F	44	4	4
14.5	45.55	3.5	G	45	5.5	6
14.9	46.80	4	H	47	7	7
15.3	48.06	4.5	I	48	9	8
15.7	49.32	5	J 1/2	50	10	9
16.1	50.57	5.5	K 1/2	52	12	10
16.5	51.83	6	L 1/2	53	13	11
16.7	52.46	-	-	-	-	12
16.9	53.09	6.5	M 1/2	54	14	13
17.3	54.34	7	N 1/2	55	15	14
17.7	55.06	7.5	O 1/2	56	16.5	15
18.1	56.86	8	P 1/2	57	18	16
18.5	58.11	8.5	Q 1/2	58	19	17
18.8	59.06	-	-	-	-	18
19.0	59.69	9	R 1/2	59	20	-
19.4	60.94	9.5	S 1/2	60	21.5	19
19.8	62.20	10	T 1/2	61	22	20
20.0	62.83	-	-	-	-	21
20.2	6.46	10.5	U 1/2	62	23.5	22
20.6	64.71	11	V 1/2	63	25	23
21.0	65.97	11.5	W 1/	64	26	24
21.4	67.23	12	X 1/2	66	27.5	-
21.5	67.54	-	-	-	-	25
21.6	67.85	-	-	68	-	-
21.8	68.48	12.5	Z	-	28	-
21.9	68.80	-	-	69	-	26
22.1	69.42	-	-	-	29	-
22.3	70.05	13	-	70	30	27
22.5	70.68	-	Z 1/2	-	-	-
22.6	70.99	13.5	-	-	-	-
22.7	71.31	-	-	71	31	28
22.9	71.94	-	Z+2	72	32	-
23.2	72.88	14	Z+3	-	-	-

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