Ring Sizing Guide

Finger Size	Finger Size	Internal Dia	Internal Dia	Internal Circum
British	Euro	MM	Ins	mm
A		12.1	0.48	37.5
	38	12.1	0.48
A 1/2		12.3	0.48	38.4
	39	12.4	0.49
B		12.5	0.49	39
B 1/2		12.7	0.5	39.6
	40	12.7	0.5
C		12.9	0.51	40.2
C 1/2	41	13.1	0.51	40.8
D		13.2	0.52	41.4
	42	13.4	0.53
D 1/2		13.4	0.53	42
E		13.6	0.54	42.6
	43	13.7	0.54
E 1/2		13.8	0.54	43.2
	44	14	0.55
F		14	0.55	43.8
F 1/2		14.2	0.56	44.4
	45	14.3	0.56
G		14.4	0.57	45
G 1/2		14.6	0.58	45.6
	46	14.6	0.58
H		14.8	0.58	46.2
	47	15	0.59
H 1/2		15	0.59	46.8
I		15.2	0.6	47.4
	48	15.3	0.6
I 1/2		15.4	0.61	48
	49	15.6	0.61
J		15.6	0.61	48.6
J 1/2		15.8	0.62	49.2
	50	15.9	0.63
K		16	0.63	49.8
K 1/2		16.2	0.64	50.4
	51	16.2	0.64
L		16.4	0.65	51
	52	16.6	0.65
L 1/2		16.6	0.65	51.6
M		16.8	0.66	52.2
	53	16.9	0.66
M 1/2		17	0.67	52.8
N		17.2	0.68	53.5
	54	17.2	0.68
N 1/2		17.4	0.68	54.1
	55	17.5	0.69
O		17.6	0.69	54.7
O 1/2		17.8	0.7	55.4
	56	17.8	0.7
P		18	0.71	56
	57	18.1	0.71
P 1/2		18.2	0.72	56.7
Q		18.4	0.72	57.3
	58	18.5	0.73
Q 1/2	18.6	0.73	57.9
R		18.8	0.74	5
	59	18.8	0.74
R 1/2		19	0.75	59.2
	60	19.1	0.75
S		19.2	0.75	59.9
S 1/2		19.4	0.76	60.5
	61	19.4	0.76
T		19.5	0.77	61.1
	62	19.7	0.78
T 1/2		19.7	0.78	61.8
U		19.9	0.79	62.4
	63	20.1	0.79
U 1/2		20.1	0.79	63
V		20.3	0.8	63.7
	64	20.4	0.8
V 1/2		20.5	0.81	64.3
	65	20.7	0.81
W		20.7	0.82	64.9
W 1/2		20.9	0.82	65.5
	66	21	0.83
X		21.1	0.83	66.1
X 1/2		21.3	0.84	66.7
	67	21.3	0.84	66.7
Y		21.5	0.85	67.3
	68	21.6	0.85
Y 1/2		21.7	0.85	67.9
Z		21.9	0.86	68.5
	69	22	0.86
Z 1/2		22.1	0.87
Z+1		22.3	0.88
Z+2		22.7	0.89
Z+3		23.1	0.91

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