Ring Size Guide

How to choose the size of your ring ?

 

  • It is important to know the size of the ring in order not to hurt yourself. A ring that is too tight or a ring that is too loose can hurt your fingers, so this step is very important.
  • Whether you are a man or a woman, know that the way to find the ring size is the same: the "finger size". In fact, it is the only metric that determines the size of the ring. By finding your finger size, you will find the most suitable ring circumference.

Inside Diameter 
Inside Circumference
Sizes
MM
Inches
MM
Inches
British & Australian
 US & Canada
French & Russian
German
Japanese
Swiss
17.35
0.683
54.51
2.15
O
7
55 1/4
17 1/4
14
15 1/4
17.45
0.687
54.82
2.16
O 1/2
7 1/4
-
-
-
-
17.75
0.699
55.76
2.20
P
7 1/2
56 1/2
17 3/4
15
16 1/2
17.97
0.707
56.45
2.22
P 1/2
7 3/4
-
-
-
-
18.19
0.716
57.15
2.25
Q
8
57 3/4
18
16
17 3/4
18.35
0.722
57.65
2.27
Q 1/2
8 1/4
-
-
-
-
18.53
0.729
58.21
2.29
Q 3/4
8 1/2
-
18 1/2
17
-
18.61
0.733
58.47
2.30
R
8 5/8
59
-
-
19
18.69
0.736
58.72
2.31
R 1/4
8 3/4
-
-
-
-
18.80
0.740
59.06
2.32
R 1/2
8 7/8
-
-
-
-
18.89
0.748
59.34
2.35
R 3/4
9
-
19
18
-
19.10
0.752
60.00
2.36
S
9 1/8
60 1/4
-
-
20 1/4
19.22
0.757
60.38
2.38
S 1/4
9 1/4
-
-
-
-
19.31
0.760
60.66
2.39
S 1/2
9 3/8
-
-
-
-
19.41
0.764
60.98
2.40
S 3/4
9 1/2
-
19 1/2
19
-
19.51
0.768
61.29
2.41
T
9 5/8
61 1/2
-
-
21 1/2
19.62
0.772
61.64
2.43
T 1/4
9 3/4
-
-
-
-
19.84
0.781
62.33
2.45
T 1/2
10
-
20
20
-
20.02
0.788
62.89
2.48
U
10 1/4
62 3/4
-
21
22 3/4
20.20
0.797
63.46
2.50
U 1/2
10 1/2
-
20 1/4
22
-
20.32
0.800
63.84
2.51
V
10 5/8
63
-
-
23 3/4
20.44
0.805
64.21
2.53
V 1/4
10 3/4
-
-
-
-
20.68
0.814
64.97
2.56
V 1/2
11
-
20 3/4
23
-
20.76
0.817
65.22
2.57
W
11 1/8
65
-
-
25
20.85
0.821
65.50
2.58
W 1/4
11 1/4
-
-
-
-
20.94
0.824
65.78
2.59
W 1/2
11 3/8
-
-
-
-
21.08
0.830
66.22
2.61
W 3/4
11 1/2
-
21
24
-
21.18
0.834
66.54
2.62
X
11 5/8
66 1/4
-
-
26 1/4
21.24
0.836
66.73
2.63
X 1/4
11 3/4
-
-
-
-
21.30
0.839
66.92
2.64
X 1/2
11 7/8
-
-
-
-
21.49
0.846
67.51
2.66
Y
12
67 1/2
21 1/4
25
27 1/2
21.69
0.854
68.14
2.68
Y 1/2
12 1/4
-
-
-
-
21.89
0.862
68.77
2.71
Z
12 1/2
68 3/4
21 3/4
26
28 3/4
22.10
0.870
69.43
2.73
Z +1/2
12 3/4
-
-
-
-
22.33
0.879
70.15
2.76
Z+1
13
-
22
27
-
22.60
0.890
71.00
2.80
Z+1.5
13.5
-