Volume of Rectangle
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Cylinder Volume Calculator

Calculate the volume of a perfect cylinder easily using radius and height.

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

What is a Cylinder?

A 3D shape with two parallel circular bases.

A cylinder is a three-dimensional solid that holds two parallel bases joined by a curved surface, at a fixed distance. The most common type is a right circular cylinder.

Key Information
Shape Focus
cylinder volume calculator

How to Find the Volume of a Cylinder

You need the radius of the base and the height.

1
Measure the radius of the circular base.
2
Measure the height of the cylinder.
3
Square the radius, multiply by pi, and multiply by the height.

Cylinder Volume Formula

The equation for a cylinder's volume.

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

Where 'V' is volume, 'π' is roughly 3.14159, 'r' is the base radius, and 'h' is the height.

Frequently Asked Questions

What if I only have the diameter?

Divide the diameter by 2 to get the radius, then use the standard formula.

How do I calculate the capacity of a cylindrical tank?

Measure the inner radius and inner height of the tank, use the cylinder volume formula, and convert the cubic units into liters or gallons.

What is a right cylinder versus an oblique cylinder?

A right cylinder has bases aligned directly above each other. An oblique cylinder leans to one side, but surprisingly, the volume formula remains exactly the same.

Can I use this for an oval cylinder?

No, if the base is an oval (ellipse), you must use the formula for an elliptical cylinder: V = π × a × b × h, where a and b are the major and minor radii.