Convert from fathom [ancient] to nanometer

Unit Definition (fathom [ancient])
A fathom is a unit of measure equal to 2 yards or 6 feet, or 1.8288 metres. The name of the unit derives from the Old English word fæthm meaning 'outstretched arms' which was the original definition of the unit's measure.

Unit Definition (nanometer)
Equal to 0.000000001 meters (formerly millimicron), or 0.03937 microinch.