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FAQ
Title
Ring Size Chart
Ring Size reference chart
Ring Size Conversion Chart
Ring diameter (mm)
Inner circumference (mm)
Japan (cm)
HK
US
UK
15 2/3
49.2
9
11
5
J
16
50.3
10
11.5
5.5
K
16 1/3
51.3
11
12
6
L
16 2/3
52.4
12
13
6.5
L-M
17
53.4
13
14.5
6.5-7
M-N
17 1/3
54.5
14
16
7-7.5
N-O
17 2/3
55.5
15
17
7.5-8
O-P
18
56.6
16
18
8
P
18 1/3
57.6
17
19
8.5
Q
18 2/3
58.6
18
20.5
9
R
19
59.7
19
22
9.5
S
19 1/3
60.7
20
23
10
T
19 2/3
61.8
21
23.5
10-10.5
T-U
20
62.8
22
24
10.5
U
20 1/3
63.9
23
25
11
V
20 2/3
64.9
24
26
11.5
W
21
66
25
27.75
12
X
21 1/3
67
26
29
12.5
Y
21 2/3
68
27
30
13
Z
