Inside Diameter mm

Finger Circumference mm

Size

UK/AUS Size

15.9
16.5
16.9
17.4
17.8
18.2
18.5
18.9
19.4
19.8
20.2
20.7
21.1
21.5
21.9
22.3
22.6

50
51.9
53.2
54.5
55.8
57.2
58.2
59.3
61
62.3
63.5
65
66.2
67.5
68.8
70.2
71

5.25
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5

K 1/4
M
N
O
P
Q
Q 3/4
R 3/4
S 3/4
T 1/2
U 1/2
V 1/2
W 3/4
Y
Z
Z+1
Z+2