Ring Sizing
First, select a ring that fits for the finger.
Next, measure the diameter opening of that ring.
Use the chart below to determine your ring size.
Inside Diameter (mm)
Inside Circumference (mm)
UK
US
EU
46 1/2
47 3/4
49
50
51 3/4
52 3/4
54
55 1/4
56 1/2
57 3/4
59
60 1/4
61 1/2
62 3/4
63
65
66 1/4
67 1/2
68 3/4
14.65
15.04
15.40
15.80
16.10
16.51
16.92
17.35
17.75
18.19
18.61
19.10
19.51
20.02
20.32
20.76
21.18
21.49
21.89
46.02
47.25
48.38
49.64
50.58
51.87
53.16
54.51
55.76
57.15
58.47
60
61.29
62.89
63.84
65.22
66.54
67.51
68.77
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
3 3/4
4 1/4
4 5/8
5 1/8
5 1/2
6
6 1/2
7
7 1/2
8
8 5/8
9 1/8
9 5/8
10 1/4
10 5/8
11 1/8
11 5/8
12
12 1/2
