Ring Size Guide

UK SIZE	USA	EU (mm)	JAPAN
H	3.75	46.30	6
H1/2	4	46.92
I	4.25	47.55	7
I1/2	4.5	48.17	8
J	4.75	48.79
J1/2	5	49.41	9
K	5.25	50.03	10
K1/2	5.5	50.66
L	5.75	51.28	11
L1/2	6	51.90
M	6.25	52.52	12
M1/2	6.5	53.15	13
N	6.75	53.77
N1/2		54.39	14
O	7	55.01	15
O1/2	7.25	55.63
P	7.5	56.26	16
P1/2	7.75	56.88
Q	8	57.50	17
Q1/2	8.25	58.12	18
R	8.5	58.75
R1/2	8.75	59.37	19
S	9	59.99	20
S1/2	9.25	60.61
T	9.5	61.24	21
T1/2	9.75	61.86	22
U	10	62.48
U1/2	10.25	63.10	23
V	10.5	63.72	24
V1/2	10.75	64.35
W	11	64.97	25
W1/2	11.25	65.59
X	11.5	66.21	26
X1/2	11.75	66.84
Y	12	67.46
Y1/2	12.25	68.08
Z	12.5	68.70	27
Z1/2	12.75	69.33
Z1	13	69.95	28
Z1 1/2	13.25	70.57	29
Z2	13.5	71.19
Z2 1/2	13.75	71.81	30
Z3	14	72.44
Z3 1/2	14.25	73.06	31
Z4	14.5	73.68	32