Ring Size Guide

 

Aus/UK
Sizing

US
Sizing

Europe
Sizing

Diameter
(mm)
H 3.75 46.0 14.6
H 1/2 4 46.7 14.8
I 4.25 47.3 15.0
I 1/2 4.5 47.9 15.3
J 4.75 48.4 15.4
J 1/2 5 49.3 15.6
K 5.25 49.9 15.9
K 1/2 5.5 50.6 16.1
L 5.75 51.2 16.3
L 1/2 6 51.8 16.5
M 6.25 52.5 16.7
M 1/2 6.5 53.1 16.9
N 6.75 53.8 17.1
N 1/2 7 54.4 17.3
O 7.25 55.0 17.5
O 1/2 7.5 55.7 17.7
P 7.75 56.3 17.9
P 1/2 8 56.9 18.1
Q 8.25 57.6 18.3
Q 1/2 8.5 58.2 18.5
R 8.75 58.9 18.7
R 1/2 9 59.5 18.9
S 9.25 60.1 19.2
S 1/2 9.5 60.8 19.4
T 9.75 61.4 19.6
T 1/2 10 62.3 19.8
U 10.25 62.9 20.0
U 1/2 10.5 63.5 20.2
V 10.75 63.9 20.3
V 1/2 11 64.9 20.7
W 11.25 65.2 20.8
W 1/2 11.5 65.8 20.9
X 11.75 66.5 21.2
X 1/2 11.88 66.9 21.3
Y 12 67.5 21.5
Y 1/2 12.25 68.1 21.7
Z 12.5 68.8

21.9