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Find your Ring Size

FINGER SIZE

Finger size changes depending on the time of day and the weather. For best results, measure your finger size at the end of the day when your fingers are warm. They tend to be thinner in the early morning and when the weather is cold. Multiple readings (3-4- times) can help eliminate measurement errors.

RING SIZE

If you are not sure about the size of an existing ring, this can be determined in two ways:

  1. Measure the diameter of your existing ring in mm., in other words, from one side of the ring to the other (inner edge to inner edge)
  2. Measure the metric size around your finger (inner circumference of the ring).

You can then refer to the chart below and determine your corresponding ring size.

Diameter
(mm)
Circumference
(mm)
English
 
U.S.A.
 
JP/CN/SG
 
International Ring Size Chart
14.5 45.5 G 3 1/2  
14.7 46.1 G 1/2   6
14.9 46.8 H 4 7
15.1 47.4 H 1/2    
15.3 48.0 I 4 1/2 8
15.5 48.7 J    
15.7 49.3 J 1/2 5 9
15.9 50.0 K    
16.1 50.6 K 1/2 5 1/2 10
16.3 51.2 L    
16.5 51.9 L 1/2 6 11
16.7 52.5 M   12
16.9 53.1 M 1/2 6 1/2 13
17.1 53.8 N    
17.3 54.4 N 1/2 7 14
17.5 55.1 O    
17.7 55.7 O 1/2 7 1/2 15
17.9 56.3 P    
18.1 57.0 P 1/2 8 16
18.3 57.6 Q    
18.5 58.3 Q 1/2 8 1/2 17
18.8 58.9 R    
19.0 59.5 R 1/2 9 18
19.2 60.2 S    
19.4 60.8 S 1/2 9 1/2 19
19.6 61.4 T    
19.8 62.1 T 1/2 10 20
20.0 62.7 U   21
20.2 63.4 U 1/2 10 1/2 22
20.4 64.0 V    
20.6 64.6 V 1/2 11 23
20.8 65.3 W    
21.0 65.9 W 1/2 11 1/2 24
21.2 66.6 X    
21.4 67.2 X 1/2 12 25
21.5 67.8 Y    
21.8 68.5 Z 12 1/2 26

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