1/16" is what hair clipper number?

for example:

1/8" = clipper attachment #1

1/4" = clipper attachment #2

3/8" = clipper attachment #3

1/16" is what hair clipper number?

its between 0 (no guard) and 1 .

us hairdressers usually call it a 1 1/2. Doesnt make sense, but thats what we call it.