# SOLUTION: how many gallons does my tank hold if it is 6 feet long,18 inches wide and 22 inches tall?

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 Click here to see ALL problems on Volume Question 571223: how many gallons does my tank hold if it is 6 feet long,18 inches wide and 22 inches tall?Answer by Theo(3504)   (Show Source): You can put this solution on YOUR website!we'll convert everything to inches. the volume of your tank is equal to 72 * 18 * 22 = 28512 cubic inches. the number of cubic inches in a gallon is equal to 231. divide 28512 cubic inches by 231 cubic inches to get 123.4285714 gallons. this assumes the tank is holding liquid. there is such a thing as a dry gallon, but it is not commonly used. a reference that discusses imperial gallon versus united states wet gallon versus united states dry gallon is shown below: http://en.wikipedia.org/wiki/Gallon i would assume liquid gallon unless otherwise specified, which is unlikely.