Determining your ring size can be tricky without the proper tools. Use ourRing Size Conversionchart below to find your ring size in different countries.
Ring Diameter (MM)
USA/Canada
United Kingdom
France
Germany
Japan
Switzerland
14.0 mm.
3
F
44
14
4
4
14.4 mm.
3½
G
45¼
14½
5½
6⅓
14.8 mm.
4
H½
46½
15
7
6½
15.2 mm.
4½
I½
47¾
15¼
8
8
15.6 mm.
5
J½
49
15¾
9
9½
16.0 mm.
5½
L
50¾
16
10½
10¾
16.5 mm.
6
M
51½
16½
12
12¾
16.9 mm.
6½
N
52¾
17
13
14
17.3 mm.
7
O
54
17¼
14
15¼
17.7 mm.
7½
P
55¼
17¾
15
16½
18.2 mm.
8
Q
56¾
18
16
17¾
18.6 mm.
8½
Q½
58
18½
17
18½
19.0 mm.
9
R½
59¼
19
18
20
19.4 mm.
9½
S½
60¾
19½
19
21
19.8 mm.
10
T½
61¾
20
20
21¾
20.2 mm.
10½
U½
62¾
20¼
22
22¾
20.6 mm.
11
V½
64¼
20¾
23
24
21.0 mm.
11½
W½
66
21
24
25¾
21.4 mm.
12
Y
67¼
21¼
25
27½
21.8 mm.
12½
Z
68
21¾
26
28¾
22.2 mm.
13
-
69
22
27
29¼
22.6 mm.
13½
-
-
-
-
-
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