RING
SIZING | INTERNATIONAL RING SIZE CHART | RESIZING ETERNITY RINGS
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USA
Size
Diam.
-inch
Diam.
in mm
Metric
-mm
British
French
German
Japanese
0000
.390
9.91
-
00
.422
10.72
-
0
.454
11.53
-
1/2
.474
11.95
A
3/4
.482
12.18
A
1/2
1
.487
12.37
38.9
B
1
1
1/4
-
12.60
39.6
B
1/2
1
1/2
.503
12.78
40.2
C
1
3/4
-
13.00
40.8
C
1/2
2
.520
13.21
41.5
D
41
1/2
13
1/2
2
2
1/4
-
13.41
42.1
D
1/2
-
-
2
1/2
.536
13.61
42.7
E
42
3/4
13
3/4
3
2
3/4
-
13.83
43.4
E
1/2
-
-
3
.553
14.05
44.0
F
44
14
4
3
1/8
-
14.15
44.3
F
1/2
-
-
3
1/4
-
14.25
44.6
-
-
-
3
3/8
-
14.36
44.9
G
45
1/4
-
5
3
1/2
.569
14.45
45.2
-
-
14
1/2
3
5/8
-
14.56
45.6
G
1/2
-
6
3
3/4
-
14.65
45.9
H
46
1/2
4
.585
14.86
46.5
H
1/2
-
15
7
4
1/4
-
15.04
47.1
I
47
3/4
4
1/2
.601
15.27
47.8
I
1/2
-
15
1/4
8
4
5/8
-
15.40
48.1
J
49
15
1/2
4
3/4
-
15.53
48.4
-
-
5
.618
15.70
49.0
J
1/2
-
15
3/4
9
5
1/8
-
15.80
49.3
K
50
5
1/4
-
15.90
49.6
-
-
5
3/8
-
16.0
50.0
K
1/2
-
10
5
1/2
.634
16.10
50.3
L
51
3/4
16
5
3/4
-
16.30
50.9
-
-
5
7/8
-
16.41
51.3
L
1/2
-
6
.650
16.51
51.5
M
52
3/4
16
1/2
12
6
1/4
-
16.71
52.2
M
1/2
-
6
1/2
.666
16.92
52.8
N
54
17
13
6
3/4
-
17.13
53.4
N
1/2
-
7
.683
17.35
54.0
O
55
1/4
17
1/4
14
7
1/4
-
17.45
54.7
O
1/2
-
7
1/2
.699
17.75
55.3
P
56
1/2
17
3/4
15
7
3/4
-
17.97
55.9
P
1/2
-
8
.716
18.19
56.6
Q
57
3/4
18
16
8
1/4
-
18.35
57.2
Q
1/2
-
8
1/2
.732
18.53
57.8
-
-
18
1/2
17
8
5/8
-
18.61
58.4
R
59
8
3/4
-
18.69
58.4
-
-
8
7/8
-
18.80
59.0
R
1/2
-
9
.748
18.89
59.1
-
-
19
18
9
1/8
-
19.10
59.4
S
60
1/4
9
1/4
-
19.22
59.7
-
-
9
3/8
-
19.31
60.0
S
1/2
-
9
1/2
.764
19.41
60.3
-
-
19
1/2
19
9
5/8
-
19.51
60.6
T
61
1/2
9
3/4
-
19.62
60.9
-
-
10
.781
19.84
61.6
T
1/2
-
20
20
10
1/4
-
20.02
62.2
U
62
3/4
21
10
1/2
.797
20.20
62.8
U
1/2
-
20
1/4
22
10
5/8
-
20.32
63.1
V
63
10
3/4
-
20.44
63.5
-
-
11
.814
20.68
64.1
V
1/2
-
20
3/4
23
11
1/8
-
20.76
64.3
W
65
11
1/4
-
20.85
64.7
-
-
11
3/8
-
20.94
65.0
W
1/2
-
11
1/2
-
21.08
65.3
-
-
21
24
11
5/8
.830
21.18
65.7
X
66
1/4
11
3/4
-
21.24
66.0
-
-
11
7/8
-
21.30
66.3
X
1/2
-
12
.846
21.49
66.6
Y
67
1/2
21
1/4
25
12
1/2
.862
21.89
67.9
Z
68
3/4
21
3/4
26
12
3/4
-
22.10
68.5
Z
1/2
-
13
.879
22.33
69.1
-
-
22
27
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International
Ring Sizing Chart
Using the
table following the link, you can also find the correct US size if
you know your ring size in one of several international ring size
systems. While not exact equivalents, the closest comparable size has
been provided. Click
here.
