Ring Sizing Chart
Ring Sizes
|
Measured Size
|
|||
USA & Canada
|
Inside Diameter
|
Inside Circumference
|
||
Inches
|
MM
|
Inches
|
MM
|
|
0
|
0.458
|
11.63
|
1.44
|
36.5
|
1/4
|
0.466
|
11.84
|
1.46
|
37.2
|
1/2
|
0.474
|
12.04
|
1.49
|
37.8
|
3/4
|
0.482
|
12.24
|
1.51
|
38.5
|
1
|
0.49
|
12.45
|
1.54
|
39.1
|
1 1/4
|
0.498
|
12.65
|
1.56
|
39.7
|
1 1/2
|
0.506
|
12.85
|
1.59
|
40.4
|
1 3/4
|
0.514
|
13.06
|
1.61
|
41.0
|
2
|
0.522
|
13.26
|
1.64
|
41.7
|
2 1/4
|
0.53
|
13.46
|
1.67
|
42.3
|
2 1/2
|
0.538
|
13.67
|
1.69
|
42.9
|
2 3/4
|
0.546
|
13.87
|
1.72
|
43.6
|
3
|
0.554
|
14.07
|
1.74
|
44.2
|
3 1/4
|
0.562
|
14.27
|
1.77
|
44.8
|
3 1/2
|
0.57
|
14.48
|
1.79
|
45.5
|
3 3/4
|
0.578
|
14.68
|
1.82
|
46.1
|
4
|
0.586
|
14.88
|
1.84
|
46.8
|
4 1/4
|
0.594
|
15.09
|
1.87
|
47.4
|
4 1/2
|
0.602
|
15.29
|
1.89
|
48.0
|
4 3/4
|
0.61
|
15.49
|
1.92
|
48.7
|
5
|
0.618
|
15.70
|
1.94
|
49.3
|
5 1/4
|
0.626
|
15.90
|
1.97
|
50.0
|
5 1/2
|
0.634
|
16.10
|
1.99
|
50.6
|
5 3/4
|
0.642
|
16.31
|
2.02
|
51.2
|
6
|
0.65
|
16.51
|
2.04
|
51.9
|
6 1/4
|
0.658
|
16.71
|
2.07
|
52.5
|
6 1/2
|
0.666
|
16.92
|
2.09
|
53.1
|
6 3/4
|
0.674
|
17.12
|
2.12
|
53.8
|
7
|
0.682
|
17.32
|
2.14
|
54.4
|
7 1/4
|
0.69
|
17.53
|
2.17
|
55.1
|
7 1/2
|
0.698
|
17.73
|
2.19
|
55.7
|
7 3/4
|
0.706
|
17.93
|
2.22
|
56.3
|
8
|
0.714
|
18.14
|
2.24
|
57.0
|
8 1/4
|
0.722
|
18.34
|
2.27
|
57.6
|
8 1/2
|
0.73
|
18.54
|
2.29
|
58.3
|
8 3/4
|
0.738
|
18.75
|
2.32
|
58.9
|
9
|
0.746
|
18.95
|
2.34
|
59.5
|
9 1/4
|
0.754
|
19.15
|
2.37
|
60.2
|
9 1/2
|
0.762
|
19.35
|
2.39
|
60.8
|
9 3/4
|
0.77
|
19.56
|
2.42
|
61.4
|
10
|
0.778
|
19.76
|
2.44
|
62.1
|
10 1/4
|
0.786
|
19.96
|
2.47
|
62.7
|
10 1/2
|
0.794
|
20.17
|
2.49
|
63.4
|
10 3/4
|
0.802
|
20.37
|
2.52
|
64.0
|
11
|
0.81
|
20.57
|
2.54
|
64.6
|
11 1/4
|
0.818
|
20.78
|
2.57
|
65.3
|
11 1/2
|
0.826
|
20.98
|
2.59
|
65.9
|
11 3/4
|
0.834
|
21.18
|
2.62
|
66.6
|
12
|
0.842
|
21.39
|
2.65
|
67.2
|
12 1/4
|
0.85
|
21.59
|
2.67
|
67.8
|
12 1/2
|
0.858
|
21.79
|
2.70
|
68.5
|
12 3/4
|
0.866
|
22.00
|
2.72
|
69.1
|
13
|
0.874
|
22.20
|
2.75
|
69.7
|
13 1/4
|
0.882
|
22.40
|
2.77
|
70.4
|
13 1/2
|
0.89
|
22.61
|
2.80
|
71.0
|
13 3/4
|
0.898
|
22.81
|
2.82
|
71.7
|
14
|
0.906
|
23.01
|
2.85
|
72.3
|
14 1/4
|
0.914
|
23.22
|
2.87
|
72.9
|
14 1/2
|
0.922
|
23.42
|
2.90
|
73.6
|
14 3/4
|
0.93
|
23.62
|
2.92
|
74.2
|
15
|
0.938
|
23.83
|
2.95
|
74.8
|
15 1/4
|
0.946
|
24.03
|
2.97
|
75.5
|
15 1/2
|
0.954
|
24.23
|
3.00
|
76.1
|
15 3/4
|
0.962
|
24.43
|
3.02
|
76.8
|
16
|
0.97
|
24.64
|
3.05
|
77.4
|