Convert from oncia [Italy] to atomic mass unit [1973]

Unit Definition (oncia [Italy])
The onça, once, oncia, onza is traditional names for the ounce unit in Romance languages. The Italian oncia or onza is no longer used, but traditionally it equaled 1/12 libra or about 27.3 grams (0.96 ounce).

Unit Definition (atomic mass unit [1973])