Italy Murano Glass, Murrina, Objet d art, heart,


	Finger Sizes If you wish to order a ring from us, please specify the size in the British standard.

Britain	Europe	Japan	USA	Diameter	Circumference
			0	11.54	36.25
A				11.90	37.38
		0		12.00	37.70
A1/2				12.10	38.01
B				12.30	38.64
			1	12.37	38.86
B1/2				12.50	39.27
			11/4	12.58	39.52
C				12.70	39.90
	0.15		11/2	12.78	40.15
C1/2	0.53			12.90	40.53
	0.84	1	13/4	13.00	40.84
	1.00			13.05	41.00

Britain	Europe	Japan	USA	Diameter	Circumference
D	1.15			13.10	41.15
	1.50		2	13.21	41.50
D1/2	1.78			13.30	41.78
	1.88	2		13.33	41.88
	2.00			13.37	42.00
	2.13		21/4	13.41	42.13
E	2.41			13.50	42.41
	2.76		21/2	13.61	42.76
	2.91	3		13.66	42.91
E1/2	3.00			13.69	43.00
	3.42		23/4	13.82	43.42
F	3.67			13.90	43.67
	3.98	4		14.00	43.98
	4.00			14.01	44.00
	4.14		3	14.05	44.14

Britain	Europe	Japan	USA	Diameter	Circumference
F1/2	4.30			14.10	44.30
	4.74		31/4	14.24	44.74
G	4.92			14.30	44.92
	5.00			14.32	45.00
	5.02	5		14.33	45.02
	5.40		31/2	14.45	45.40
G1/2	5.55			14.50	45.55
	6.00			14.64	46.00
	6.02		33/4	14.65	46.02
	6.06	6		14.66	46.06
H	6.18			14.70	46.18
	6.68		4	14.86	46.68

Britain	Europe	Japan	USA	Diameter	Circumference
H1/2	6.81			14.90	46.81
	7.00			14.96	47.00
	7.12	7		15.00	47.12
	7.34		41/4	15.07	47.34
I	7.44			15.10	47.44
	7.97		41/2	15.27	47.97
	8.00			15.28	48.00
I1/2	8.07			15.30	48.07
	8.16	8		15.33	48.16
	8.63		43/4	15.48	48.63
J	8.69			15.50	48.69
	9.00			15.60	49.00
	9.20	9		15.66	49.20

Britain	Europe	Japan	USA	Diameter	Circumference
J1/2	9.32		5	15.70	49.32
K	9.95		51/4	15.90	49.95
	10.00			15.92	50.00
	10.27	10		16.00	50.27
K1/2	10.58		51/2	16.10	50.58
	11.00			16.23	51.00
L	11.24		53/4	16.31	51.24
	11.30	11		16.33	51.30
L1/2	11.87		6	16.51	51.87
	12.00			16.55	52.00
	12.34	12		16.66	52.34
M	12.46			16.70	52.46
	12.56		61/4	16.73	52.56
	13.00			16.87	53.00

Britain	Europe	Japan	USA	Diameter	Circumference
M1/2	13.09			16.90	53.09
	13.16		61/2	16.92	53.16
	13.41	13		17.00	53.41
N	13.72			17.10	53.72
	13.85		63/4	17.14	53.85
	14.00			17.19	54.00
N1/2	14.35			17.30	54.35
	14.44	14		17.33	54.44
	14.51		7	17.35	54.51
O	14.98			17.50	54.98
	15.00		71/4	17.56	55.00
	15.48	15		17.66	55.48

Britain	Europe	Japan	USA	Diameter	Circumference
O1/2	15.61			17.70	55.61
	15.76		71/2	173/4	55.76
	16.00			17.83	56.00
P	16.23			17.90	56.23
	16.45		73/4	17.97	56.45
	16.55	16		18.00	56.55
P1/2	16.86			18.10	56.86
	17.00			18.14	57.00
	17.15		8	18.19	57.15
Q	17.49			18.30	57.49
	17.59	17		18.33	57.59
	17.77		81/4	18.39	57.77
	18.00			18.46	58.00

Britain	Europe	Japan	USA	Diameter	Circumference
Q1/2	18.12			18.50	58.12
	18.40		81/2	18.59	58.40
	18.62	18		18.66	58.62
R	183/4			18.70	583/4
	19.00		83/4	18.78	59.00
R1/2	19.38			18.90	59.38
	19.66		9	18.99	59.66
	19.69	19		19.00	59.69
S	20.00			19.10	60.00
	20.38		91/4	19.22	60.38
S1/2	20.63			19.30	60.63
	20.73	20		19.33	60.73
	20.98		91/2	19.41	60.98
	21.00			19.42	61.00

Britain	Europe	Japan	USA	Diameter	Circumference
T	21.26			19.50	61.26
	21.67		93/4	19.63	61.67
	21.76	21		19.66	61.76
T1/2	21.89			19.70	61.89
	22.00			19.74	62.00
	22.33		10	19.84	62.33
U	22.52			19.90	62.52
	22.83	22		20.00	62.83
	23.00		101/4	20.05	63.00
U1/2	23.15			20.10	63.15
	23.59		101/2	20.24	63.59

Britain	Europe	Japan	USA	Diameter	Circumference
V	23.77			20.30	63.77
	23.87	23		20.33	63.87
	23.99			20.37	63.99
	24.28		103/4	20.46	64.28
V1/2	24.40			20.50	64.40
	24.91	24		20.66	64.91
	24.97		11	20.68	64.97
W	25.00			20.69	65.00
	25.60		111/4	20.88	65.60

Britain	Europe	Japan	USA	Diameter	Circumference
W1/2	25.66			20.90	65.66
	25.97	25		21.00	65.97
	26.00			21.01	66.00
	26.22		111/2	21.08	66.22
X	26.29			21.10	66.29
X1/2	26.92		103/4	21.30	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
Y1/2	28.20		121/4	21.71	68.20
Z	28.77		121/2	21.89	68.77
	28.99			21.96	68.99
	29.12	28		22.00	69.12

Britain	Europe	Japan	USA	Diameter	Circumference
Z1/2	29.43			22.10	69.43
	29.49		123/4	22.12	69.49
Z+1	29.99			22.28	69.99
	30.15	29	13	22.33	70.15
Z+11/2	30.69			22.50	70.69
	30.81		131/4	22.54	70.81
	31.00			22.60	71.00
	31.19	30		22.66	71.19
Z+2	31.31			22.70	71.31
	31.47		131/2	223/4	71.47
Z+21/2	32.01		133/4	22.92	72.01
	32.26	31		23.00	72.26

Britain	Europe	Japan	USA	Diameter	Circumference
Z+3	32.57			23.10	72.57
	32.76		14	23.16	72.76
	33.01			23.24	73.01
Z+31/2	33.20			23.30	73.20
	33.32			23.34	73.32
	33.29	32		23.33	73.29
	33.42		141/4	23.37	73.42
Z+4	33.83			23.50	73.83
	33.98		141/2	23.55	73.98
	34.33	33		23.66	74.33
Z+41/2	34.46			23.70	74.46
	34.71		143/4	23.78	74.71
	34.99			23.87	74.99

Britain	Europe	Japan	USA	Diameter	Circumference
Z+5	35.08			23.90	75.08
	35.40	34	15	24.00	75.40
Z+51/2	35.71			24.10	75.71
	36.00		151/4	24.19	76.00
Z+6	36.34			24.30	76.34
	36.43	35		24.33	76.43
	36.69		151/2	24.41	76.69
Z+61/2	37.00			24.51	77.00
	37.31		153/4	24.61	77.31
	37.47	36		24.66	77.47
Z+7	37.60			24.70	77.60
	38.00		16	24.83	78.00
Z+71/2	38.23			24.90	78.23
	38.54	37	161/4	25.00	78.54

© Lawrence Chard 1999

Formulae:-
Diameter = (British Size x .4) + 11.5; where A = 1, B = 2, Z = 26, etc.
Diameter = (American Size x 0.83) + 11.5
European Size = Circumference - 40
Diameter = (Japanese Size / 3) +12.67
In all cases, diameter is in millimetres.