Convert from microinch to fathom

Unit Definition (microinch)
The microinch is a common imperial unit of distance equal to one millionth of an inch, or 25.4 nanometers (nm). The microinch is used for precise machining tolerances and also to describe the roughness of surfaces.

Unit Definition (fathom)
a linear unit of measurement (equal to 6 feet) for water depth.