If you don’t see your ring size at check-out, please reach out to discuss with us, we create rings of all sizes.

We encourage you to have your ring size measured professionally, or with reliable ring gauges. The fit of a ring is especially important and a measurement being off by a small amount can have a big impact on fit. Measurements made using paper and alternative approaches to measure circumference are known to be unreliable.

 
 
 
 
 
 
 
  Inside
  Diameter 

    (mm)
  Inside Circumference

    (mm)
  British & Australian
   US & Canada
  French & Russian
  German
  Japanese
  Swiss
 

  14.05
  44.14
  F
  3
  44
  14
  4
  4
 

  14.45
  45.4
  G 1/4
  3 1/2
  -
  14 1/2
  -
  -
 

  14.86
  46.68
  H 1/2
  4
  -
  15
  7
  -
 

  15.27
  47.97
  I 1/2
  4 1/2
  -
  15 1/4
  8
  -
 

  15.7
  49.32
  J 1/2
  5
  -
  15 3/4
  9
  -
 

  16.1
  50.58
  L
  5 1/2
  51 3/4
  16
  -
  11 3/4
 

  16.51
  51.87
  M
  6
  52 3/4
  16 1/2
  12
  12 3/4
 

  16.71
  52.5
  M 1/2
  6 1/4
  -
  -
  -
  -
 

  16.92
  53.16
  N
  6 1/2
  54
  17
  13
  14
 

  17.13
  53.82
  N 1/2
  6 3/4
  -
  -
  -
  -
 

  17.35
  54.51
  O
  7
  55 1/4
  17 1/4
  14
  15 1/4
 

  17.45
  54.82
  O 1/2
  7 1/4
  -
  -
  -
  -
 

  17.75
  55.76
  P
  7 1/2
  56 1/2
  17 3/4
  15
  16 1/2
 

  17.97
  56.45
  P 1/2
  7 3/4
  -
  -
  -
  -
 

  18.19
  57.15
  Q
  8
  57 3/4
  18
  16
  17 3/4
 

  18.35
  57.65
  Q 1/2
  8 1/4
  -
  -
  -
  -
 

  18.53
  58.21
  Q 3/4
  8 1/2
  -
  18 1/2
  17
  -
 

  18.89
  59.34
  R 3/4
  9
  -
  19
  18
  -
 

  19.41
  60.98
  S 3/4
  9 1/2
  -
  19 1/2
  19
  -
 

  19.84
  62.33
  T 1/2
  10
  -
  20
  20
  -
 

  20.2
  63.46
  U 1/2
  10 1/2
  -
  20 1/4
  22
  -
 

  20.68
  64.97
  V 1/2
  11
  -
  20 3/4
  23
  -
 

  21.08
  66.22
  W 3/4
  11 1/2
  -
  21
  24
  -
 

  21.49
  67.51
  Y
  12
  67 1/2
  21 1/4
  25
  27 1/2
 

  21.89
  68.77
  Z
  12 1/2
  68 3/4
  21 3/4
  26
  28 3/4
 

  22.33
  70.15
  Z+1
  13
  -
  22
  27
  -
 

  
  
  
  
  
  
  
  
 

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