Crossword clues for Unit of 3 Down 6 letters:AMPEREUnit of 3 DownBARS3 Musketeers unitsACREINCHUnit equivalent to 3,630 cubic feetWATTHOURUnit of energy equivalent to 3,600 joulesAMPEREHOURUnit of electric charge equivalent to 3,600 coulombsCUBICCENTIMETERDosage unit (In this answer, note letter 6 + 3 letters around it)