International Ring Size Conversion Chart US Size (US,MX,CA)
Brazilian Size
European Size (FR,DK,RU, NO,FI,SE)
British Size (UK,AU,NZ, ZA,IE)
Japanese Size (HK,CN,KR, TW,SG)
German Size (DE, AR)
Swiss Size (CH,ES)
3
7
44.0
F 1/2
4
14.00
4.0
3 1/4
8
44.5
G
5
14.25
5.0
3 1/2
9
45.5
G 1/2
14.50
5.5
46.0
H
6
14.75
6.0
46.5
H 1/2
7
15.00
7.0
47.0
I
3 3/4 4
10
4 1/4
7.5
4 1/2
11
48.0
J
4 3/4
12
48.5
J 1/2
5
13
49.0
K
9
50.0
K 1/2
10
50.5
L
51.0
L 1/2
5 1/4 5 1/2
14
5 3/4
8
11
15.25
8.0
15.50
9.0
15.75
9.5 10.0
16.00
10.5
16.25
11.5
16.50
12.0
6
15
51.5
M
6 1/4
16
52.5
M 1/2
12
16.75
12.5
53.0
N
13
17.00
13.5
53.5
N 1/2
54.5
O
6 1/2 6 3/4
17
7
14.0 14
17.25
14.5
17.50
15.0
7 1/4
18
55.0
O 1/2
7 1/2
19
55.5
P
15
17.75
16.0
56.5
P 1/2
16
18.00
16.5
57.0
Q
18.25
17.0
57.5
Q 1/2
7 3/4 8
20
8 1/4 8 1/2
21
58.0
R
8 3/4
22
59.0
R 1/2
59.5
S
9 9 1/4
23
60.0
S 1/2
9 1/2
24
61.0
T
61.5
T 1/2
9 3/4
17
18.0 18.50
18.5
18
18.75
19.0
19
19.00
20.0
19.25
20.5
19.50
21.0
19.75
21.5
20