Engineering and construction

Volume Calculator

Calculate the volume of rectangular prisms, cubes, cylinders, cones and trenches. Enter dimensions in your preferred unit and get automatic conversions.

Free online tool

Volume Calculator

Calculate the volume of rectangular prisms, cubes, cylinders, cones and trenches, with automatic unit conversion.

Results are approximate. Verify actual dimensions, element geometry and project tolerances before using the result for purchasing, estimating or construction.

How is volume calculated?

The formula depends on the geometric shape. A rectangular prism is calculated by multiplying length, width and height.

Cylinders and cones use the radius, which is obtained by dividing the diameter by two.

The tool automatically converts all entered dimensions to meters before calculating.

Main conversion

1 m³ = 1,000 liters

Frequently asked questions

Volume calculation questions

How do I calculate cubic meters?

For a rectangular shape, multiply length by width by height, with all measurements expressed in meters.

How many liters are in one cubic meter?

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

How do I calculate the volume of a cylinder?

Multiply π by the radius squared and by the cylinder height.

Can I enter dimensions in centimeters and feet?

Yes. Measurements can be entered in millimeters, centimeters, meters, inches or feet.