Fathoms to hair widths equation
To convert fathoms to hair widths:
Multiply the number of fathoms by 10.37463976945245
About fathoms
A fathom is usually equal to 6 feet — though sometimes 6.0761 or 6.08 feet
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.