Ring Size (UK)
A
B
C
D
E
F
G
H
I
J
K
L
M
Measure (mm)
37.8
39.1
40.4
41.7
42.9
44.2
45.5
46.8
48.0
48.7
50.0
51.2
52.5
Ring Size (UK)
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Measure (mm)
53.8
55.1
56.3
57.6
58.9
60.2
61.4
62.7
64.0
65.3
66.6
67.8
68.5