Sizing Guide Information | Stephen Webster

Ring Size Guide

To obtain the most accurate measurement of your finger, measure at room temperature, when your hands are not unusually cold.

Alternatively, to work out your size from an existing ring, measure the ring using our sizing guide below.

 

Stephen Webster Circumference
(mm)
Diameter
(mm)
UK & Austrailia USA & Canada Europe China Singapore & Japan Hong Kong Switzerland
3 44.2 14.1 3 44 6 4 6 4
  44.8 14.3 G   45   5   5.25
3.5 45.5 14.5 3.5   7   7.5  
  46.1 14.7 H   46   6   6.5
4 46.8 14.9 4 47 8 7 9  
  47.4 15.1 I     9     7.75
4.5 48.0 15.3 4.5 48   8 10  
  48.7 15.5 J           9
5 49.3 15.7 5 49 10 9 11  
  50.0 15.9 K   50       10
5.5 50.6 16.1 5.5   11 10 12  
  51.2 16.3 L   51       11.75
6 51.9 16.5 6 52 12 11 13 12.75
  52.5 16.7 M     13 12    
6.5 53.1 16.9 6.5 53   13 14.5 14
  53.8 17.1 N     14      
7 54.4 17.3 7 54   14 16 15.25
  55.1 17.5 O   55 15      
7.5 55.7 17.7 7.5     15 17 16.5
  56.3 17.9 P   56 16      
8 57.0 18.1 8 57 17 16   17.75
  57.2 18.2           18  
  57.6 18.3 Q            
8.5 58.3 18.5 8.5 58 18 17 19  
  58.9 18.8 R   59       19
9 59.5 19.0 9   19 18 20.5  
  60.2 19.2 S   60 20     20.25
9.5 60.8 19.4 9.5 61   19 22  
  61.4 19.6 T     21     21.5
10 62.1 19.8 10 62   20 23  
  62.7 20.0 U     22 21    
10.5 63.4 20.2 10.5 63   22 24 22.75
  64.0 20.4 V   64 23      
11 64.6 20.6 11     23 25  
  65.3 20.8 W   65 24     25
11.5 65.9 21.0 11.5 66 25 24 26  
  66.6 21.2 X            
12 67.2 21.4 12 67 26 25 27.75 27.5
  67.8 21.6 Y            
12.5 68.5 21.8 Z 12.5 68   26   28.75
  69.1 22.0   69        
13 69.7 22.2   13 70   27 30  
  70.4 22.4 Z+1            
13.5 71.0 22.6 Z+2 13.5