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International Ring Size Conversion Chart

US Size (US, CA, MX)	British Size (UK, AU, NZ, ZA, IE)	European Size (FR, RU, DK, SE, NO, FI)	German Size (DE, AR)	Brazilian Size (BR)	Japanese Size (JP, CN, KR, HK, TW, SG)	Swiss Size (CH, ES)
3	F 1/2	44.0	14.00	7	4	4.0
3 1/4	G	44.5	14.25	8	5	5.0
3 1/2	G 1/2	45.5	14.50	9		5.5
3 3/4	H	46.0	14.75		6	6.0
4	H 1/2	46.5	15.00	10	7	7.0
4 1/4	I	47.0				7.5
4 1/2	J	48.0	15.25	11	8	8.0
4 3/4	J 1/2	48.5	15.50	12		9.0
5	K	49.0	15.75	13	9	9.5
5 1/4	K 1/2	50.0			10	10.0
5 1/2	L	50.5	16.00	14		10.5
5 3/4	L 1/2	51.0	16.25		11	11.5
6	M	51.5	16.50	15		12.0
6 1/4	M 1/2	52.5	16.75	16	12	12.5
6 1/2	N	53.0	17.00		13	13.5
6 3/4	N 1/2	53.5		17		14.0
7	O	54.5	17.25		14	14.5
7 1/4	O 1/2	55.0	17.50	18		15.0
7 1/2	P	55.5	17.75	19	15	16.0
7 3/4	P 1/2	56.5	18.00		16	16.5
8	Q	57.0	18.25	20		17.0
8 1/4	Q 1/2	57.5			17	18.0
8 1/2	R	58.0	18.50	21		18.5
8 3/4	R 1/2	59.0	18.75	22	18	19.0
9	S	59.5	19.00		19	20.0
9 1/4	S 1/2	60.0	19.25	23		20.5
9 1/2	T	61.0	19.50	24	20	21.0
9 3/4	T 1/2	61.5	19.75			21.5
10	U	62.0	20.00	25	21	22.5
10 1/4	U 1/2	63.0			22	23.0
10 1/2	V	63.5	20.25	26		23.5
10 3/4	V 1/2	64.0	20.50	27	23	24.5
11	W	64.5	20.75		24	25.0
11 1/4	W 1/2	65.5		28		25.5
11 1/2	X	66.0	21.00		25	26.0
11 3/4	X 1/2	66.5	21.25	29	26	27.0
12	Y	67.5	21.50	30		27.5
12 1/4	Y 1/2	68.0	21.75		27	28.0
12 1/2	Z	68.5	22.00	31	28	29.0
12 3/4	Z 1/2	69.0				29.5
13	Z+1	70.0	22.25	32	29	30.0
13 1/4	Z+1 1/2	70.5	22.50	33		31.0
13 1/2	Z+2	71.0		34	30	32.0
13 3/4	Z+2 1/2	71.5	22.75	35		32.5
14	Z+3	72.0	23.00		31	33.0
14 1/4	Z+3 1/2	72.5	23.25	35	32	33.5
14 1/2	Z+4	73.5	23.50			34.5
14 3/4	Z+4 1/2	74.0		36	33	35.0
15	Z+5	74.5	23.75	37		36.0
15 1/4	Z+5 1/2	75.0	24.00		34	36.5
15 1/2	Z+6	76.0	24.25	38		37.0
15 3/4	Z+6 1/2	76.5	24.50		35	37.5
16	Z+7	77.0		39		38.5