Gold Rings and Things - Ring Sizes Chart

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International Ring sizes :

Shown below is a table which will help you to convert between British, Japanese, American and European sizes.

In the chart the dimensional sizes for circumference and diameter both refer to the internal size of the ring in millimetres.

If you find out that the ring you like does not fit your finger(too big or too small) then don't despair Click Here for details!

Use the links below to quickly jump to the correct table.

	Sizes A to E
	Sizes E½ to H
	Sizes H½ to K½
	Sizes L to O
	Sizes O½ to R½
	Sizes S to U½
	Sizes V to Y½
	Sizes Z to Z+1
	Sizes Z+1½ to Z+4½
	Z + 5 to Z+7½

Table 1

Sizes A to E

Britain	Europe	Japan	USA	Diameter	Circumference
			0	11.54	36.25
A				11.9	37.38
		0		12	37.7
A½				12.1	38.01
B				12.3	38.64
			1	12.37	38.86
B½				12.5	39.27
			1¼	12.58	39.52
C				12.7	39.9
	0.15		1½	12.78	40.15
C½	0.53			12.9	40.53
	0.84	1	1¾	13	40.84
	1			13.05	41
D	1.15			13.1	41.15
	1.5		2	13.21	41.5
D½	1.78			13.3	41.78
	1.88	2		13.33	41.88
	2			13.37	42
	2.13		2¼	13.41	42.13
E	2.41			13.5	42.21

Table 2

Sizes E½ to H

Britain	Europe	Japan	USA	Diameter	Circumference
	2.76		2½	13.61	42.76
	2.91	3		13.66	42.91
E½	3			13.69	43
	3.42		2¾	13.82	43.42
F	3.67			13.9	43.67
	3.98	4		14	43.98
	4			14.01	44
	4.14		3	14.05	44.14
F½	4.3			14.1	44.3
	4.74		3¼	14.24	44.74
G	4.92			14.3	44.92
	5			14.32	45
	5.02	5		14.33	45.02
	5.4		3½	14.45	45.4
G½	5.55			14.5	45.55
	6			14.64	45.55
	6.02		3¾	14.65	46.02
	6.06	6		14.66	46.06
H	6.18			14.7	46.18
	6.68		4	14.86	46.68

Table 3

Sizes H½ to K½

Britain	Europe	Japan	USA	Diameter	Circumference
H½	6.81			14.9	46.81
	7			14.96	47
	7.12	7		15	47.12
	7.34		4¼	15.07	47.34
I	7.44			15.1	47.44
	7.97		4½	15.27	47.97
	8			15.28	48
I½	8.07			15.3	48.07
	8.16	8		15.33	48.16
	8.63		4¾	15.48	48.63
J	8.69			15.5	48.69
	9			15.6	49
	9.2			15.6	49
J½	9.32		5	15.7	49.32
K	9.95		5¼	15.9	49.95
	10			15.92	50
	10.27	10		16	50.27
K½	10.58		5½	16.1	50.58
	11			16.23	51

Table 4

Sizes L to O

Britain	Europe	Japan	USA	Diameter	Circumference
L	11.24		5¾	16.31	51.24
	11.3	11		16.33	51.3
L½	11.87		6	16.51	51.87
	12			16.55	52
	12.34	12		16.66	52.34
M	12.46		6¼	16.73	52.56
	13			16.87	53
M½	13.09			16.09	53.09
	13.16		6½	16.92	53.16
	13.41	13		17	53.41
N	13.72			17.1	53.72
	13.85		6¾	17.14	53.85
	14			17.19	54
N½	14.35			17.3	54.35
	14.44	14		17.33	54.44
	14.51		7	17.35	54.51
O	14.98			17.5	54.98
	15		7¼	17.56	55
	15.48	15		17.66	55.48

Table 5

Sizes O½ to R½

Britain	Europe	Japan	USA	Diameter	Circumference
O½	15.61			17.7	55.61
	15.76		7½	17.75	55.76
	16			17.83	56
P	16.23			17.9	56.23
	16.45		7¾	17.97	56.45
	16.55	16		18	56.55
P½	16.86			18.1	56.86
	17			18.14	57
	17.15		8	18.19	57.15
Q	17.49			18.3	57.49
	17.59	17		18.33	57.59
	17.77		8¼	18.39	57.77
	18			18.46	58
Q½	18.12			18.5	58.12
	18.4		8½	18.59	58.4
	18.62	18		18.66	58.62
R	18.75			18.7	58.75
	19		8¾	18.78	59
R½	19.38			18.9	59.38
	19.66		9	18.99	59.66

Table 6

Sizes S to U½

Britain	Europe	Japan	USA	Diameter	Circumference
	19.69	19		19	56.69
S	20			19.1	60
	20.38		9¼	19.22	60.38
S½	20.63			19.3	60.73
	20.73	20		19.33	60.73
	20.98		9½	19.41	60.98
	21			19.42	61
T	21.26			19.5	61.26
	21.67		9¾	19.63	61.67
	21.76	21		19.66	61.76
T½	21.89			19.7	61.89
	22			19.74	62
	22.33		10	19.84	62.33
U	22.52			19.9	62.52
	22.83	22		20	62.83
	23		10¼	20.05	63
U½	23.15			20.1	63.15
	23.59		10½	20.24	63.59

Table 7

Sizes V to Y½

Britain	Europe	Japan	USA	Diameter	Circumference
V	23.77			20.3	63.77
	23.87	23		20.33	63.87
	23.99			20.37	63.99
	24.28		10¾	20.46	64.28
V½	24.4			20.5	64.4
	24.91	24		20.66	64.91
	24.97		11	20.68	64.97
W	25			20.69	65
	25.6		11¼	20.88	65.6
W½	25.66			20.99	65.66
	25.97	25		21	65.97
	26			21.01	66
	26.22		11½	21.08	66.22
X	26.29			21.1	66.29
X½	26.92		11¾	21.3	66.92
	27.01	26		21.33	67.01
Y	27.51		12	21.49	67.51
	28.02			21.65	68.02
	28.05	27		21.66	68.05
Y½	28.2		12¼	21.71	68.2

Table 8

Sizes Z to Z+1

Britain	Europe	Japan	USA	Diameter	Circumference
Z	28.77		12½	21.89	68.77
	28.99			21.96	68.99
	29.12	28		22	69.12
W½	25.66			20.99	65.66
	25.97	25		21	65.97
	26			21.01	66
	26.22		11½	21.08	66.22
X	26.29			21.1	66.29
X½	26.92		11¾	21.3	66.92
	27.01	26		21.33	67.01
Y	27.51		12	21.49	67.51
	28.02			21.65	68.02
	28.05	27		21.66	68.05
Y½	28.2		12¼	21.71	68.2
Z	28.77		12½	21.89	68.77
	28.99			21.96	68.99
	29.12	28		22	69.12
Z½	29.43			22.1	69.43
	29.49		12¾	22.12	69.49
Z+1	29.99			22.28	69.99

Table 9

Sizes Z+1½ to Z+4½

Britain	Europe	Japan	USA	Diameter	Circumference
	30.15	29	13	22.33	70.15
Z+1½	30.69			22.5	70.69
	30.81		13¼	22.54	70.81
	31			22.6	71
	31.19	30		22.66	71.19
Z+2	31.31			22.7	71.31
	31.47		13½	22.75	71.47
Z+2½	32.01		13¾	22.92	72.01
	32.26	31		23	72.26
Z+3	32.57			23.1	72.57
	32.76		14	23.16	72.76
	33.01			23.24	73.01
Z+3½	33.2			23.3	73.2
	33.32			23.34	73.32
	33.29	32		23.33	73.29
	33.42		14¼	23.37	73.42
Z+4	33.83			23.5	73.83
	33.98		14½	23.55	73.98
	34.33	33		23.66	74.33
Z+4½	34.46			23.7	74.46

Table 10

Z + 5 to Z+7½

Britain	Europe	Japan	USA	Diameter	Circumference
	34.71		14¾	23.78	74.71
	34.99			23.87	74.99
Z+5	35.08			23.9	75.08
	35.4	34	15	24	75.4
Z+5½	35.71			24.1	75.71
	36		15¼	24.19	76
Z+6	36.34			24.3	76.34
	36.43	35		24.33	76.43
	36.69		15½	24.41	76.69
Z+6½	37			24.51	77
	37.31		15¾	24.61	77.31
	37.47	36		24.66	77.47
Z+7	37.6			24.7	77.6
	38		16	24.83	78
Z+7½	38.23			24.9	78.23
	38.54	37	16¼	25	78.54

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