Sizes & Ring Sizes – Table for Conversion & Rings Matching

ring sizes
The ring sizes & numbers in the photo reflect the units of measurement in US & Canada.

Find easily & quickly the size & size of your ring. See table for conversion & correspondence for ring sizes.

 

The table & photo below will help you convert & match the size of a ring to the size of the unit of measurement used in other countries.

For example, if your ring number in Greece is 44, then in Canada or America it will be 4. If your ring is 48 3/8, then in America it will be 4 3/4.

If you want to find your ring finger size yourself, see the guide“Measuring your ring finger“, or watch the video on the same page.

 

 

 

See the table with the sizes & ring numbers

 

Inner Ring Diameter
Inner Ring District
Sizes
Millimeters
Inches
Millimeters
Inches
USA & Canada
Greece, France & Russia
Great Britain & Australia
Germany
Switzerland
9.91
0.390
31.13
1.22
0
10.72
0.442
33.68
1.39
0
11.53
0.454
36.22
1.43
0
11.95
0.474
37.54
1.49
1/2
A
12.18
0.482
38.26
1.51
3/4
A 1/2
12.37
0.487
38.86
1.53
1
B
12.60
0.496
39.58
1.56
1 1/4
B 1/2
12.78
0.503
40.15
1.58
1 1/2
C
13.00
0.512
40.84
1.61
1 3/4
C 1/2
13.21
0.520
41.50
1.63
2
41 1/2
D
13 1/2
1 1/2
13.41
0.528
42.13
1.66
2 1/4
D 1/2
13.61
0.536
42.76
1.68
2 1/2
42 3/4
E
13 3/4
2 3/4
13.83
0.544
43.45
1.71
2 3/4
E 1/2
14.05
0.553
44.14
1.74
3
44
F
14
4
14.15
0.557
44.45
1.75
3 1/8
F 1/2
14.25
0.561
44.77
1.76
3 1/4
F 3/4
14.36
0.565
45.11
1.77
3 3/8
45 1/4
G
5 1/4
14.45
0.569
45.40
1.79
3 1/2
G 1/4
14 1/2
14.56
0.573
45.74
1.80
3 5/8
G 1/2
14.65
0.577
46.02
1.81
3 3/4
46 1/2
H
6 1/2
14.86
0.585
46.68
1.84
4
H 1/2
15
15.04
0.592
47.25
1.86
4 1/4
47 3/4
I
7 3/4
15.27
0.601
47.97
1.89
4 1/2
I 1/2
15 1/4
15.40
0.606
48.38
1.90
4 5/8
49
J
15 1/2
9
15.53
0.611
48.79
1.92
4 3/4
J 1/4
15.70
0.618
49.32
1.94
5
J 1/2
15 3/4
15.80
0.622
49.64
1.95
5 1/8
50
K
10
15.90
0.626
49.95
1.97
5 1/4
K 1/4
16.00
0.630
50.27
1.98
5 3/8
K 1/2
16.10
0.634
50.58
1.99
5 1/2
51 3/4
L
16
11 3/4
16.30
0.642
51.21
2.02
5 3/4
L 1/4
16.41
0.646
51.55
2.03
5 7/8
L 1/2
16.51
0.650
51.87
2.04
6
52 3/4
M
16 1/2
12 3/4
16.71
0.658
52.50
2.07
6 1/4
M 1/2
16.92
0.666
53.16
2.09
6 1/2
54
N
17
14
17.13
0.674
53.82
2.12
6 3/4
N 1/2
17.35
0.683
54.51
2.15
7
55 1/4
O
17 1/4
15 1/4
17.45
0.687
54.82
2.16
7 1/4
O 1/2
17.75
0.699
55.76
2.20
7 1/2
56 1/2
P
17 3/4
16 1/2
17.97
0.707
56.45
2.22
7 3/4
P 1/2
18.19
0.716
57.15
2.25
8
57 3/4
Q
18
17 3/4
18.35
0.722
57.65
2.27
8 1/4
Q 1/2
18.53
0.729
58.21
2.29
8 1/2
Q 3/4
18 1/2
18.61
0.733
58.47
2.30
8 5/8
59
R
19
18.69
0.736
58.72
2.31
8 3/4
R 1/4
18.80
0.740
59.06
2.32
8 7/8
R 1/2
18.89
0.748
59.34
2.35
9
R 3/4
19
19.10
0.752
60.00
2.36
9 1/8
60 1/4
S
20 1/4
19.22
0.757
60.38
2.38
9 1/4
S 1/4
19.31
0.760
60.66
2.39
9 3/8
S 1/2
19.41
0.764
60.98
2.40
9 1/2
S 3/4
19 1/2
19.51
0.768
61.29
2.41
9 5/8
61 1/2
T
21 1/2
19.62
0.772
61.64
2.43
9 3/4
T 1/4
19.84
0.781
62.33
2.45
10
T 1/2
20
20.02
0.788
62.89
2.48
10 1/4
62 3/4
U
22 3/4
20.20
0.797
63.46
2.50
10 1/2
U 1/2
20 1/4
20.32
0.800
63.84
2.51
10 5/8
63
V
23 3/4
20.44
0.805
64.21
2.53
10 3/4
V 1/4
20.68
0.814
64.97
2.56
11
V 1/2
20 3/4
20.76
0.817
65.22
2.57
11 1/8
65
W
25
20.85
0.821
65.50
2.58
11 1/4
W 1/4
20.94
0.824
65.78
2.59
11 3/8
W 1/2
21.08
0.830
66.22
2.61
11 1/2
W 3/4
21
21.18
0.834
66.54
2.62
11 5/8
66 1/4
X
26 1/4
21.24
0.836
66.73
2.63
11 3/4
X 1/4
21.30
0.839
66.92
2.64
11 7/8
X 1/2
21.49
0.846
67.51
2.66
12
67 1/2
Y
21 1/4
27 1/2
21.69
0.854
68.14
2.68
12 1/4
Y 1/2
21.89
0.862
68.77
2.71
12 1/2
68 3/4
Z
21 3/4
28 3/4
22.10
0.870
69.43
2.73
12 3/4
Z +1/2
22.33
0.879
70.15
2.76
13
Z+1
22
22.60
0.890
71.00
2.80
13.5
Z+1.5
22.69
0.893
71.28
2.81
Z+2
22.92
0.902
72.00
2.83
Z+2.5
23.06
0.908
72.45
2.85
Z+3
23.24
0.915
73.01
2.87
Z+3.5
23.47
0.924
73.73
2.90
Z+4
23.55
0.927
73.98
2.91
Z+4.5
23.87
0.940
74.99
2.95
Z+5
24.27
0.956
76.25
3.00
Z+6