1 Size (Circumference in mm)

2 Diameter

3 European size

4 American size

 

1 2 3 4
46 14.64 6  ¾
48 15.28 8  ½
50 15.92 10  ¼
52 16.55 12 6
54 17.19 14  ¾
56 17.83 16  ½
58 18.46 18

8 ¼

60 19.1 20  ¼

 

Ring Sizing Guide:

 

1. Print this picture without scaling to ensure the length of the line is 70 mm:

2. Cut out the printed measurement tool and wrap around the desired finger:

3. Pull the paper very tight around finger and read the size at the line: