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Making the assumptions that these measurements are in inches, and that the fish tank is a perfect cuboid, the volume of the fish tank is 49 x 19 x 21 = 19,511 cubic inches.

Rounded to two decimal places, this is equal to 70.47 gallons.

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14y ago
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14y ago

48x21x18=18144 cubic inches. There are 231 cubic inches per gallon, so
18144/231=78.55 gallons.

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12y ago

An aquarium that is 48in. by 12in. by 13 in. would hold 32.41 Gallons or 126.1 liters.

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Q: If a fish tank is 48inches long 21 inches tall and 18 inches wide how many gallons of water will it hold?
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