Volume of Rectangle
Interactive Calculator

Length x Width x Height to Volume Calculator

Quickly determine the total volume of any rectangular object by entering its three primary dimensions.

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

What is length, width, and height volume?

The simplest way to measure 3D space.

Volume calculated from length, width, and height refers to the total amount of three-dimensional space enclosed by a rectangular object. It is the fundamental measurement for everyday boxes, rooms, and building materials.

Key Information
Shape Focus
length width height to volume calculator

How to Calculate Volume from L x W x H

Calculating volume from three basic dimensions is straightforward.

1
Measure the length of the object.
2
Measure the width and height using the same units.
3
Multiply the three measurements together (Length × Width × Height).

Volume Formula (L x W x H)

The standard equation for rectangular volume.

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

Where 'V' is volume, 'l' is length, 'w' is width, and 'h' is height. Ensure all dimensions are in the same unit before multiplying.

Frequently Asked Questions

Does it matter what order I multiply length, width, and height?

No, multiplication is commutative, meaning l × w × h will give the exact same result as w × h × l.

What if my measurements are in different units?

You must convert all measurements to a single unit (like inches or centimeters) before multiplying, otherwise the result will be incorrect.

Can this formula be used for a cylinder?

No, length × width × height is only for rectangular prisms and cubes. Cylinders require a different formula using the radius and height.

Is length always the longest side?

Conventionally, yes, length is the longest side, width is the shorter side, and height is the vertical dimension, but mathematically the labels don't change the volume.