Ring Size Charts - see "Chart B" for Plus Sizes
Please see below for our ring size charts. We can also mail you metal gauges with a paid order.
|
Inside |
Inside |
Inside |
Inside |
Number
Sizes |
Wheat
Sheaf |
|
|
|
Diameter |
Diameter |
Circumference |
Circumference |
US/Canada |
British |
Japanese |
Swiss |
|
(inches) |
(mm) |
(inches) |
(mm) |
Standard |
Irish |
Equivalent |
Equivalent |
|
|
|
|
|
|
Australian |
|
|
|
|
|
|
|
|
Equivalent |
|
|
|
0.458 |
11.6 |
1.438 |
36.5 |
0 |
|
|
|
|
0.466 |
11.8 |
1.463 |
37.2 |
1/4 |
|
|
|
|
0.474 |
12.0 |
1.488 |
37.8 |
1/2 |
A |
|
|
|
0.482 |
12.2 |
1.513 |
38.4 |
3/4 |
A
1/2 |
|
|
|
0.490 |
12.4 |
1.539 |
39.1 |
1 |
B |
1 |
|
|
0.498 |
12.6 |
1.564 |
39.7 |
1
1/4 |
B
1/2 |
|
|
|
0.506 |
12.9 |
1.589 |
40.4 |
1
1/2 |
C |
|
|
|
0.514 |
13.1 |
1.614 |
41.0 |
1
3/4 |
C
1/2 |
|
|
|
0.522 |
13.3 |
1.639 |
41.6 |
2 |
D |
2 |
1.50 |
|
0.530 |
13.5 |
1.664 |
42.3 |
2
1/4 |
D
1/2 |
|
|
|
0.538 |
13.7 |
1.689 |
42.9 |
2
1/2 |
E |
3 |
2.75 |
|
0.546 |
13.9 |
1.714 |
43.5 |
2
3/4 |
E
1/2 |
|
|
|
0.554 |
14.1 |
1.740 |
44.2 |
3 |
F |
4 |
4.00 |
|
0.562 |
14.3 |
1.765 |
44.8 |
3
1/4 |
F
1/2 |
5 |
5.25 |
|
0.570 |
14.5 |
1.790 |
45.5 |
3
1/2 |
G |
|
|
|
0.578 |
14.7 |
1.815 |
46.1 |
3
3/4 |
G
1/2 |
6 |
6.50 |
|
0.586 |
14.9 |
1.840 |
46.7 |
4 |
H |
7 |
|
|
0.594 |
15.1 |
1.865 |
47.4 |
4
1/4 |
H
1/2 |
|
7.75 |
|
0.602 |
15.3 |
1.890 |
48.0 |
4
1/2 |
I |
8 |
|
|
0.610 |
15.5 |
1.915 |
48.7 |
4
3/4 |
J |
|
9.00 |
|
0.618 |
15.7 |
1.941 |
49.3 |
5 |
J
1/2 |
9 |
|
|
0.626 |
15.9 |
1.966 |
49.9 |
5
1/4 |
K |
|
10.00 |
|
0.634 |
16.1 |
1.991 |
50.6 |
5
1/2 |
K
1/2 |
10 |
|
|
0.642 |
16.3 |
2.016 |
51.2 |
5
3/4 |
L |
|
11.75 |
|
0.650 |
16.5 |
2.041 |
51.8 |
6 |
L
1/2 |
11 |
12.75 |
|
0.658 |
16.7 |
2.066 |
52.5 |
6
1/4 |
M |
12 |
|
|
0.666 |
16.9 |
2.091 |
53.1 |
6
1/2 |
M
1/2 |
13 |
14.00 |
|
0.674 |
17.1 |
2.116 |
53.8 |
6
3/4 |
N |
|
|
|
0.682 |
17.3 |
2.141 |
54.4 |
7 |
N
1/2 |
14 |
15.25 |
|
0.690 |
17.5 |
2.167 |
55.0 |
7
1/4 |
O |
|
|
|
0.698 |
17.7 |
2.192 |
55.7 |
7
1/2 |
O
1/2 |
15 |
16.50 |
|
0.706 |
17.9 |
2.217 |
56.3 |
7
3/4 |
P |
|
|
|
0.714 |
18.1 |
2.242 |
56.9 |
8 |
P
1/2 |
16 |
17.75 |
|
0.722 |
18.3 |
2.267 |
57.6 |
8
1/4 |
Q |
|
|
|
0.730 |
18.5 |
2.292 |
58.2 |
8
1/2 |
Q
1/2 |
17 |
|
|
0.738 |
18.7 |
2.317 |
58.9 |
8
3/4 |
R |
|
19 |
|
0.746 |
18.9 |
2.342 |
59.5 |
9 |
R
1/2 |
18 |
|
|
0.754 |
19.2 |
2.368 |
60.1 |
9
1/4 |
S |
|
20.25 |
|
0.762 |
19.4 |
2.393 |
60.8 |
9
1/2 |
S
1/2 |
19 |
|
|
0.770 |
19.6 |
2.418 |
61.4 |
9
3/4 |
T |
|
21.5 |
|
0.778 |
19.8 |
2.443 |
62.1 |
10 |
T
1/2 |
20 |
|
|
0.786 |
20.0 |
2.468 |
62.7 |
10
1/4 |
U |
21 |
|
|
0.794 |
20.2 |
2.493 |
63.3 |
10
1/2 |
U
1/2 |
22 |
22.75 |
|
0.802 |
20.4 |
2.518 |
64.0 |
10
3/4 |
V |
|
|
|
0.810 |
20.6 |
2.543 |
64.6 |
11 |
V
1/2 |
23 |
|
|
0.818 |
20.8 |
2.569 |
65.2 |
11
1/4 |
W |
|
25 |
|
0.826 |
21.0 |
2.594 |
65.9 |
11
1/2 |
W
1/2 |
24 |
|
|
0.834 |
21.2 |
2.619 |
66.5 |
11
3/4 |
X |
|
|
|
0.842 |
21.4 |
2.644 |
67.2 |
12 |
X
1/2 |
25 |
27.50 |
|
0.850 |
21.6 |
2.669 |
67.8 |
12
1/4 |
Y |
|
|
|
0.858 |
21.8 |
2.694 |
68.4 |
12
1/2 |
Z |
26 |
28.75 |
|
0.866 |
22.0 |
2.719 |
69.1 |
12
3/4 |
Z
1/2 |
|
|
|
0.874 |
22.2 |
2.744 |
69.7 |
13 |
|
27 |
|
|
0.882 |
22.4 |
2.769 |
70.3 |
13
1/4 |
Z1 |
|
|
|
0.890 |
22.6 |
2.795 |
71.0 |
13
1/2 |
|
|
|
|
0.898 |
22.8 |
2.820 |
71.6 |
13
3/4 |
Z2 |
|
|
|
0.906 |
23.0 |
2.845 |
72.3 |
14 |
Z3 |
|
|
|
0.914 |
23.2 |
2.870 |
72.9 |
14
1/4 |
|
|
|
|
0.922 |
23.4 |
2.895 |
73.5 |
14
1/2 |
Z4 |
|
|
|
0.930 |
23.6 |
2.920 |
74.2 |
14
3/4 |
|
|
|
|
0.938 |
23.8 |
2.945 |
74.8 |
15 |
Z5 |
|
|
|
0.946 |
24.0 |
2.970 |
75.4 |
15
1/4 |
|
|
|
|
0.954 |
24.2 |
2.996 |
76.1 |
15
1/2 |
Z6 |
|
|
|
0.962 |
24.4 |
3.021 |
76.7 |
15
3/4 |
|
|
|
|
0.970 |
24.6 |
3.046 |
77.4 |
16 |
Z7 |
|
|
|
Inside diameter |
Inside diameter |
Inside |
Inside |
US |
Wheat sheaf |
|
0.842 |
21.4 |
2.644 |
67.2 |
12 |
X 1/2 |
|
0.850 |
21.6 |
2.669 |
67.8 |
12 1/4 |
Y |
|
0.858 |
21.8 |
2.694 |
68.4 |
12 1/2 |
Z |
|
0.866 |
22.0 |
2.719 |
69.1 |
12 3/4 |
Z 1/2 |
|
0.874 |
22.2 |
2.744 |
69.7 |
13 |
|
|
0.882 |
22.4 |
2.769 |
70.3 |
13 1/4 |
Z1 |
|
0.890 |
22.6 |
2.795 |
71.0 |
13 1/2 |
|
|
0.898 |
22.8 |
2.820 |
71.6 |
13 3/4 |
Z2 |
|
0.906 |
23.0 |
2.845 |
72.3 |
14 |
Z3 |
|
0.914 |
23.2 |
2.870 |
72.9 |
14 1/4 |
|
|
0.922 |
23.4 |
2.895 |
73.5 |
14 1/2 |
Z4 |
|
0.930 |
23.6 |
2.920 |
74.2 |
14 3/4 |
|
|
0.938 |
23.8 |
2.945 |
74.8 |
15 |
|
|
0.946 |
24.0 |
2.970 |
75.4 |
15 1/4 |
|
|
0.954 |
24.2 |
2.996 |
76.1 |
15 1/2 |
|
|
0.962 |
24.4 |
3.021 |
76.7 |
15 3/4 |
|
|
0.970 |
24.6 |
3.046 |
77.4 |
16 |
|
|
0.978 |
24.8 |
3.071 |
78.0 |
16 1/4 |
|
|
0.986 |
25.0 |
3.096 |
78.6 |
16 1/2 |
|
|
0.994 |
25.2 |
3.121 |
79.3 |
16 3/4 |
|
|
1.002 |
25.5 |
3.146 |
79.9 |
17 |
|
|
1.010 |
25.7 |
3.171 |
80.6 |
17 1/4 |
|
|
1.018 |
25.9 |
3.197 |
81.2 |
17 1/2 |
|
|
1.026 |
26.1 |
3.222 |
81.8 |
17 3/4 |
|
|
1.034 |
26.3 |
3.247 |
82.5 |
18 |
|
|
1.042 |
26.5 |
3.272 |
83.1 |
18 1/4 |
|
|
1.050 |
26.7 |
3.297 |
83.7 |
18 1/2 |
|
|
1.058 |
26.9 |
3.322 |
84.4 |
18 3/4 |
|
|
1.066 |
27.1 |
3.347 |
85.0 |
19 |
|
|
1.074 |
27.3 |
3.372 |
85.7 |
19 1/4 |
|
|
1.082 |
27.5 |
3.397 |
86.3 |
19 1/2 |
|
|
1.090 |
27.7 |
3.423 |
86.9 |
19 3/4 |
|
|
1.098 |
27.9 |
3.448 |
87.6 |
20 |
|
|
1.106 |
28.1 |
3.473 |
88.2 |
20 1/4 |
|
|
1.114 |
28.3 |
3.498 |
88.8 |
20 1/2 |
|
|
1.122 |
28.5 |
3.523 |
89.5 |
20 3/4 |
|
|
1.130 |
28.7 |
3.548 |
90.1 |
21 |
|
|
1.138 |
28.9 |
3.573 |
90.8 |
21 1/4 |
|
|
1.146 |
29.1 |
3.598 |
91.4 |
21 1/2 |
|
|
1.154 |
29.3 |
3.624 |
92.0 |
21 3/4 |
|
|
1.162 |
29.5 |
3.649 |
92.7 |
22 |
|
|
1.170 |
29.7 |
3.674 |
93.3 |
22 1/4 |
|
|
1.178 |
29.9 |
3.699 |
94.0 |
22 1/2 |
|
|
1.186 |
30.1 |
3.724 |
94.6 |
22 3/4 |
|
|
1.194 |
30.3 |
3.749 |
95.2 |
23 |
|
|
1.202 |
30.5 |
3.774 |
95.9 |
23 1/4 |
|
|
1.210 |
30.7 |
3.799 |
96.5 |
23 1/2 |
|
|
1.218 |
30.9 |
3.825 |
97.1 |
23 3/4 |
|
|
1.226 |
31.1 |
3.850 |
97.8 |
24 |
|
|
1.234 |
31.3 |
3.875 |
98.4 |
24 1/4 |
|
|
1.242 |
31.5 |
3.900 |
99.1 |
24 1/2 |
|
|
1.250 |
31.8 |
3.925 |
99.7 |
24 3/4 |
|
|
1.258 |
32.0 |
3.950 |
100.3 |
25 |
|
|
1.266 |
32.2 |
3.975 |
101.0 |
25 1/4 |
|
|
1.274 |
32.4 |
4.000 |
101.6 |
25 1/2 |
|
|
1.282 |
32.6 |
4.025 |
102.2 |
25 3/4 |
|
|
1.290 |
32.8 |
4.051 |
102.9 |
26 |
|
|
1.298 |
33.0 |
4.076 |
103.5 |
26 1/4 |
|
