Ring Sizing Chart

 UK EU US
G 45 3.25
G 1/2 46 3.5
H 46.5 3.75
H 1/2 47 4
I 48 4.25
I 1/2 48.5 4.5
J 49 4.75
J 1/2 49.5 5
K 50.5 5.25
K 1/2 51 5.5
L 51.5 5.75
L 1/2 52 6
M 53 6.25
M 1/2 53.5 6.5
N 54 6.75
N 1/2 55 7
O 55.5 7.25
O 1/2 56 7.5
P 56.5 7.75
P 1/2 57 8
Q 57.5 8.25
Q 1/2 58 8.5
R 59 8.75
R 1/2 59.5 9
S 60 9.25
S 1/2 61 9.5
T 61.5 9.75
T 1/2 62 10
U 62.5 10.25
U 1/2 63.5 10.5
V 64
10.75
V 1/2 65 11
W 65.5 11.25
W 1/2 66 11.5
X 66.5 11.75
X 1/2 67 12
Y 68 12.25
Y 1/2 68.5
12.5
Z
69
12.75