How do Sparx ring sizes compare in mm?Updated a year ago

Sparx Grinding Ring mm

5/16", 7.9

3/8", 9.5

7/16", 11.1

1/2", 12.7

9/16", 14.3

5/8", 15.9

11/16", 17.5

3/4", 19.1

7/8", 22.2

1", 25.4

1 1/8", 28.6

1 1/4", 31.8