How do you calculate tank volume?

Rectangular: length × width × height. Cylinder: π × radius² × height. All in same units.

How many gallons per cubic foot?

1 cubic foot ≈ 7.48 US gallons. The tool shows both cubic feet and gallons.

Yes. All tools on QuickFreeTools are free with no signup.

Calculate volume of rectangular or cylindrical tanks. Enter dimensions in feet; get cubic feet and gallons.

Length (ft)

Width (ft)

Height (ft)

How do you calculate tank volume?: Rectangular: length × width × height. Cylinder: π × radius² × height. All in same units.
How many gallons per cubic foot?: 1 cubic foot ≈ 7.48 US gallons. The tool shows both cubic feet and gallons.
Is this tool free?: Yes. All tools on QuickFreeTools are free with no signup.

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