Volume of Rectangle
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Cuboid Volume Calculator

Determine the volume of any cuboid quickly and easily.

V = l \times w \times h
l = ?
w = ?
h = ?
Diagram updates instantly as you type.

What is a Cuboid?

A standard box shape.

A cuboid is a convex polyhedron bounded by six quadrilateral faces, specifically rectangles. It is mathematically synonymous with a rectangular prism.

Key Information
Shape Focus
cuboid volume calculator

How to Find the Volume of a Cuboid

Finding a cuboid's volume requires three measurements.

1
Measure the length of the cuboid.
2
Measure the width.
3
Multiply the length, width, and height together.

Cuboid Volume Formula

The equation for a cuboid.

V = l × w × h
V Volume
l Length
w Width
h Height

Where 'l' is length, 'w' is width, and 'h' is height.

Frequently Asked Questions

What is the difference between a cuboid and a rectangular prism?

There is no difference in terms of volume calculations. The terms are interchangeable in basic geometry.

What is the difference between a cuboid and a cube?

A cube is a special type of cuboid where all edges are of equal length. In a standard cuboid, edges can vary.

How do I calculate internal versus external volume?

If the walls have thickness, measure the inside dimensions for internal volume (capacity) and the outside dimensions for external volume.

Does it matter which side is the height?

No. The orientation of the cuboid does not change its volume, so any dimension can act as length, width, or height.