Convert from yard to fathom [ancient]

Unit Definition (yard)
The yard is a fundamental unit of length in both the U.S. Customary System and the British Imperial System. Originally taken to be the average length of a stride, the yard is actually equal to 3 feet; defined as 91.44 centimeters.

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.