เส้นผ่าศูนย์กลางของวงแหวน |
ขนาดแหวน |
US System |
UK/Australian System |
13 |
41 |
|
|
13.5 |
43 |
|
|
14 |
44 |
|
|
14.25 |
45 |
|
|
14.5 |
46 |
|
|
15 |
47 |
4 |
H |
15.25 |
48 |
4.5 |
I |
15.5 |
49 |
5 |
J |
16 |
50 |
5.5 |
K |
16.25 |
51 |
|
|
16.5 |
52 |
6 |
L |
17 |
53 |
6.5 |
M |
17.25 |
54 |
7 |
N |
17.5 |
55 |
7.5 |
O |
17.75 |
56 |
|
|
18 |
57 |
8 |
P |
18.25 |
58 |
8.5 |
Q |
18.5 |
59 |
|
|
19 |
60 |
9 |
R |
19.25 |
61 |
9.5 |
S |
19.75 |
62 |
10 |
T |
20 |
63 |
10.5 |
U |
20.25 |
64 |
|
|
20.75 |
65 |
11 |
V |
21 |
66 |
11.5 |
W |
21.25 |
67 |
12 |
X |
21.5 |
68 |
12.5 |
Y |
21.75 |
69 |
|
|
22.50 |
70 |
|
|
22.75 |
71 |
|
|
23 |
72 |
|
|
23.25 |
73 |
|
|