Hair widths to millimeters equation
To convert hair widths to millimeters:
Multiply the number of hair widths by 176.27599999999998
About hair widths
A human hair's width varies between 17 and 181 micrometers. The measurement used here is 144th of an inch — around 176 micrometers — it was sometimes used with English units, but is not included in the Imperial system.
About millimeters
One millimeter is equal to a thousandth meters