RING SIZE CHART

UK
Europe
US
INSIDE
DIAMETER
(millimeter)
CIRCUMFERENCE
(millimeter)
H
46.5
4.25
14.9
46.8
I
47
4.5
15.1
47.4
J
48.5
5
15.5
48.7
K
50
5.5
15.9
49.9
L
51
6
16.3
51.2
M
52
6.5
16.7
52.5
N
53.5
6.75
17.1
53.8
O
55
7
17.5
55
P
56
7.5
17.9
56.3
Q
57
8
18.3
57.6
R
58.5
8.5
18.8
58.9
S
59.5
9
19.2
60.1
T
61
9.5
19.6
61.4
U
62.5
10
20
62.7
V
63
10.5
20.4
64
W
65
11
20.8
65.2
X
66
11.5
21.2
66.5
Y
67.5
12
21.6
67.8
Z
69
12.5
22
69.1

 

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