Ring Size Guide

Please, make sure to check you preferred ring size using our printed ring sizing guide:

A4 Paper Guide 

Letter Paper Guide (US format)

Our sizes refer to inner diameter of the ring in mm. 

If you don't find your precise size - we recommend to pick the closest bigger one. 

Saint Bones Size US UK EU Size Circumference
15 4 1/4 H 47 47.1
15.5 5 I 49 48.7
16 5 1/2 J 50 50.2
16.5 5 3/4 K 52 51.8
17 6 1/2 N 53 53.4
17.5 7 1/2 O 55 55
18 7 3/4 P 56 56.5
18.5 8 1/2 Q+ 58 58.1
19 9 S 60 59.7
19.5 9 3/4 T 61 61.2
20 10 1/4 U 63 62.8
20.5 11 V+ 64 64.4
21 11 1/2 X 66 65.9
21.5 12 1/4 Y 67 67.5
22 12 3/4 Z 69 69.1
22.5 13 1/2 Z1+ 71 70.7
23 14 Z3 72 72.2