Ring Size Chart

Ring Size Conversion
Circumference (mm)
Singapore/Hong Kong
Japan
UK
US
44.5
6
4
F
3
45.2
8
6
G
3.5
46
8.5
7
H
4
47.6
9.5
8
I
4.5
49.2
10.5
9
J
5
50.6
12
10
K
5.5
51.9
13
11
-
6
52.4
13.5
12
L
6
53.2
14.5
13
M
6.5
54
15.5
14
N
7
55.6
16.5
15
O
7.5
57.2
17.5
16
P
8
57.8
18
17
Q
8.5
58.7
19
18
R
9
60.3
20
19
S
9.5
61.9
21
20
T
10
63.5
23
22
U
10.5
65.1
24
23
W
11
65.9
25
24
X
11.5
66.7
26
25
Y
12
68.3
27
26
Z
12.5
69.9
28
27
-
13