Convert from fathom [ancient] to braza [Spain]

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 (braza [Spain])
The Braza is a traditional unit of distance in Spain and Latin America. In Spain it equals 2 varas, 8 palmos, or about 1.67 meters (5.48 feet or 65.75 inches). In Latin America the Braza tends to be larger. The Argentine Braza is 1.73 meters (5.68 feet or 68.16 inches), and under the Texas definition of the Vara the Braza would be 1.693 meters (5.556 feet or 66.67 inches). The Portuguese Braça is similar, but it equals 10 palmos or about 2.20 meters (7.22 feet or 86.6 inches).