Ring sizing

Ring sizes are described using the Austrakia UK sizing (alphabet letters). See below if you would like to convert or check your sizing.
Ring Size Chart
AU Sizes US Sizes Europe Sizes Finger Circumference In MM
Diameter Of Ring In MM
F 3 4.25 44.2 14.07
F 1/2 3 1/4 4.75 44.8 14.27
G 3 1/2 5.5 45.5 14.48
G 1/2 3 3/4 6 46.1 14.68
H 4 6.75 46.8 14.88
H 1/2 4 1/4 7.5 47.4 15.09
I 4 1/2 8 48 15.29
J 4 3/4 8.75 48.7 15.49
J 1/2 5 9.25 49.3 15.7
K 5 1/4 10 50 15.9
K 1/2 5 1/2 10.5 50.6 16.1
L 5 3/4 11.25 51.2 16.31
L 1/2 6 11.75 51.9 16.51
M 6 1/4 12.5 52.5 16.71
M 1/2 6 1/2 13.25 53.1 16.92
N 6 3/4 13.75 53.8 17.12
N 1/2 7 14.5 54.4 17.32
O 7 1/4 15 55.1 17.53
O 1/2 7 1/2 15.75 55.4 17.73
P 7 3/4 16.25 56.3 17.93
P 1/2 8 17 57 18.4
Q 8 1/4 17.5 57.6 18.34
Q 1/2 8 1/2 18.25 58.3 18.54
R 8 3/4 19 58.9 18.75
R 1/2 9 19.5 59.5 18.95
S 9 1/4 20.25 60.2 19.15
S 1/2 9 1/2 20.75 60.8 19.35
T 9 3/4 21.5 61.4 19.56
T 1/2 10 22 62.1 19.76
U 10 1/4 22.75 62.7 19.96
U 1/2 10 1/2 23.25 63.4 20.17
V 10 3/4 24 64 20.37
V 1/2 11 24.75 64.6 20.57
W 11 1/4 25.25 65.3 20.78
W 1/2 11 1/2 26 65.9 20.98
X 11 3/4 26.5 66.6 21.18
X 1/2 12 27.25 67.2 21.39
Y 12 1/4 27.75 67.8 21.59
Z 12 1/2 28.5 68.5 22