Rectangular Tank Volume Calculator
Determine the maximum capacity of any rectangular tank or reservoir.
What is a Rectangular Tank?
A container shaped like a rectangular prism.
A rectangular tank is simply a hollow container in the shape of a rectangular cuboid, designed to hold liquids or gases.
How to Find Rectangular Tank Volume
Use the internal dimensions of the tank.
Rectangular Tank Volume Formula
The equation for a rectangular tank.
Where 'l' is the internal length, 'w' is the internal width, and 'h' is the internal height.
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Frequently Asked Questions
Why use internal dimensions?
If the tank walls are thick, using outside dimensions will give a mathematically larger volume than the tank can actually hold.
How do I convert cubic feet to gallons?
One cubic foot is approximately equal to 7.48 US gallons.
How do I calculate a partially filled tank?
Use the exact same formula, but replace the total height of the tank with the current depth of the liquid.
Can I use this for a swimming pool?
Yes, if the pool has a flat bottom and straight sides, it acts exactly like a rectangular tank.