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Cylindrical Tank Volume Calculator

Calculate the internal capacity of any round cylindrical tank.

V = \pi r^2 h
r = ?
h = ?
Diagram updates instantly as you type.

What is a Cylindrical Tank?

A container shaped like a right circular cylinder.

A cylindrical tank is a standard cylindrical container used commonly in industry and agriculture for storing liquids, gases, or bulk materials.

Key Information
Shape Focus
cylindrical tank volume calculator

How to Find Cylindrical Tank Volume

You need the internal radius and height.

1
Measure the inner diameter and divide by 2 to find the inner radius.
2
Measure the internal height of the tank.
3
Square the radius, multiply by pi, and multiply by the height.

Cylindrical Tank Volume Formula

The equation for a cylindrical tank.

V = π r^2 h
V Volume
r Radius
h Height

Where 'r' is the internal radius and 'h' is the internal height.

Frequently Asked Questions

Does this work for a tank lying on its side?

Yes, if the tank is full. If a horizontal cylindrical tank is only partially full, calculating the volume requires a much more complex formula.

How do I calculate liters from cubic meters?

One cubic meter is exactly equal to 1,000 liters.

What if the tank has rounded ends?

If the tank has domed or hemispherical ends, it is closer to a capsule shape, and you must add the volume of those ends to the cylinder's volume.

Is a standard oil barrel a cylinder?

Most barrels bulge slightly in the middle, making them not perfectly cylindrical, though a cylinder formula gives a decent approximation.