International Ring Size Chart
|
Circumference(mm) |
Diameter(mm) |
UK, Europe,& Australia |
United States& Canada |
CN/SG/JP |
HK |
Switzerland |
|---|---|---|---|---|---|---|
|
44.2 |
14.1 |
F |
3 |
4 |
6 |
4 |
|
44.8 |
14.3 |
F½ |
|
5 |
|
5¼ |
|
45.5 |
14.5 |
G |
3½ |
|
7.5 |
|
|
46.1 |
14.7 |
G½ |
|
6 |
|
6½ |
|
46.8 |
14.9 |
H |
4 |
7 |
9 |
|
|
47.4 |
15.1 |
H½ |
|
|
|
7¾ |
|
48.0 |
15.3 |
I |
4½ |
8 |
10 |
|
|
48.7 |
15.5 |
J |
|
|
|
9 |
|
49.3 |
15.7 |
J½ |
5 |
9 |
11 |
|
|
50.0 |
15.9 |
K |
|
|
|
10 |
|
50.6 |
16.1 |
K½ |
5½ |
10 |
12 |
|
|
51.2 |
16.3 |
L |
|
|
|
11¾ |
|
51.9 |
16.5 |
L½ |
6 |
11 |
13 |
12¾ |
|
52.5 |
16.7 |
M |
|
12 |
|
|
|
53.1 |
16.9 |
M½ |
6½ |
13 |
14.5 |
14 |
|
53.8 |
17.1 |
N |
|
|
|
|
|
54.4 |
17.3 |
N½ |
7 |
14 |
16 |
15¼ |
|
55.1 |
17.5 |
O |
|
|
|
|
|
55.7 |
17.7 |
O½ |
7½ |
15 |
17 |
16½ |
|
56.3 |
17.9 |
P |
|
|
|
|
|
57.0 |
18.1 |
P½ |
8 |
16 |
|
17¾ |
|
57.2 |
18.2 |
|
|
|
18 |
|
|
57.6 |
18.3 |
Q |
|
|
|
|
|
58.3 |
18.5 |
Q½ |
8½ |
17 |
19 |
|
|
58.9 |
18.8 |
R |
|
|
|
19 |
|
59.5 |
19.0 |
R½ |
9 |
18 |
20.5 |
|
|
60.2 |
19.2 |
S |
|
|
|
20¼ |
|
60.8 |
19.4 |
S½ |
9½ |
19 |
22 |
|
|
61.4 |
19.6 |
T |
|
|
|
21½ |
|
62.1 |
19.8 |
T½ |
10 |
20 |
23 |
|
|
62.7 |
20.0 |
U |
|
21 |
|
|
|
63.4 |
20.2 |
U½ |
10½ |
22 |
24 |
22¾ |
|
64.0 |
20.4 |
V |
|
|
|
|
|
64.6 |
20.6 |
V½ |
11 |
23 |
25 |
|
|
65.3 |
20.8 |
W |
|
|
|
25 |
|
65.9 |
21.0 |
W½ |
11½ |
24 |
26 |
|
|
66.6 |
21.2 |
X |
|
|
|
|
|
67.2 |
21.4 |
X½ |
12 |
25 |
27.75 |
27½ |
|
67.8 |
21.6 |
Y |
|
|
|
|
|
68.5 |
21.8 |
Z |
12½ |
26 |
|
28¾ |
|
69.1 |
22.0 |
Z½ |
|
|
|
|
|
69.7 |
22.2 |
|
13 |
27 |
30 |
|
|
70.4 |
22.4 |
Z+1 |
|
|
|
|
|
71.0 |
22.6 |
|
13½ |
|
|
|