Sizing rings

0-16 US ring size templates.


US size Inner diameter
-- --

 0     11.63mm
  .5   12.04mm
 1     12.45mm
 1.5   12.85mm
 2     13.26mm
 2.5   13.67mm
 3     14.07mm
 3.5   14.48mm
 4     14.88mm
 4.5   15.29mm
 5     15.70mm
 5.5   16.10mm
 6     16.51mm
 6.5   16.92mm
 7     17.32mm
 7.5   17.73mm
 8     18.14mm
 8.5   18.54mm
 9     18.95mm
 9.5   19.35mm
10     19.76mm
10.5   20.17mm
11     20.57mm
11.5   20.98mm
12     21.39mm
12.5   21.79mm
13     22.20mm