Designers don’t uses inches. They use points and picas. Here’s what you need to know:
A point is smaller than a pica.
1 inch = 72 points
1 inch = 6 picas
Adobe InDesign displays units like this:
pica → 0p0 ← point
8p6 (that means 8 pica, 6 points)
0p11 (that means 0 pica, 11 points)
>> the next bigger increment would be: 1p0 (that means 1 pica, 0 points)