Ring Size
There are several different ways determine your ring size.
Know Your Ring Size  
  1. Any jeweler would be happy to give you an accurate measurement.

  2. You can do it yourself by following these simple instructions.

  3. Note that different countries have different ring sizes. All sizes listed here are standard American sizes.

  4. If the ring is to be a surprise, simply perform the same steps on a ring your intended recipient already owns. How you get it from them is up to you. We don't have a handy chart for that. Although, we can help you once you secure the ring with the following simple procedure.

    Measure the diameter: (either inches or millimeters)
  • Take any ring and lay it flat against the inch or millimeter face of a ruler (For a more accurate reading, we recommend measuring millimeters)

  • Starting at 0, measure the distance of across from the inside edges of the band.

  • Find the matching ring size for your mark on this chart.


 
US  Size
Dia. -inch
Dia. in MM
Metric -MM
British 
French 
German 
Indian /
Japanese 
Swiss 
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
1 1/2
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
2 3/4
-
13.83
43.4
E 1/2
-
-
    
3
.553
14.05
44.0
F
44
14
4
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
5 1/4
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
    
6 1/2
4
.585
14.86
46.5
H 1/2
-
15
7
  
4 1/4
-
15.04
47.1
I 
47 3/4
    
7 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
  
9
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
    
10
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
  
11 3/4
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
12 3/4
6 1/4
-
16.71
52.2
M 1/2
-
      
6 1/2
.666
16.92
52.8
N
54
17
13
14
6 3/4
-
17.13
53.4
N 1/2
-
      
7
.683
17.35
54.0
O
55 1/4
17 1/4
14
15 1/4
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
16 1/2
7 3/4
-
17.97
55.9
P 1/2
-
      
8
.716
18.19
56.6
Q
57 3/4
18
16
17 3/4
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
    
19
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
    
20 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
    
21 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
22 3/4
10 1/2
.797
20.20
62.8
U 1/2
-
20 1/4
22
  
10 5/8
-
20.32
63.1
V
63
    
23 3/4
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
    
25
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
    
26 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
27 1/2
12 1/4
-
21.69
67.2
Y 1/2
-
      
12 1/2
.862
21.89
67.9
Z
68 3/4
21 3/4
26
28 3/4
12 3/4
-
22.10
68.5
Z 1/2
-
      
13
.879
22.33
69.1
-
-
22
27
  

Notes:
  • For the record, the average woman's ring size is 6.
  • If your mark falls in between two ring sizes, choose the larger size.
  • If your knuckle is a lot larger than the base of your finger, using the circumference method, measure both the base and the knuckle with your paper and select a size in between the two.
  • When considering a wide band, move up a size from your measurement, for comfort's sake.
  • Remember to measure your finger in warm temperatures at the end of the day. This is when the most blood will be in your hands, and you will be guaranteed a ring fit that will be comfortable for a lifetime.

Close