Volume of Rectangle
Interactive Calculator

Rectangular Prism Volume Calculator

Instantly calculate the volume of any rectangular prism with our easy-to-use tool.

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

What is a Rectangular Prism?

A 3D shape with 6 rectangular faces.

A rectangular prism is a three-dimensional solid object which has six faces that are rectangles. All opposite faces of a rectangular prism are equal.

Key Information
Shape Focus
volume of rectangular prism calculator

How to Find the Volume of a Rectangular Prism

Follow these steps to find the volume manually.

1
Identify the length of the base.
2
Identify the width of the base.
3
Multiply length, width, and the height of the prism.

Rectangular Prism Volume Formula

The mathematical equation for a rectangular prism.

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

Where 'V' is the total volume, 'l' is length, 'w' is width, and 'h' is height.

Frequently Asked Questions

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

They are exactly the same thing. Cuboid is another name for a rectangular prism.

How do I find the volume if I only know the base area and height?

Simply multiply the base area by the height (V = Base Area × Height).

What units should the volume be in?

Volume is always measured in cubic units, such as cubic inches (in³) or cubic meters (m³).

Is a cube a rectangular prism?

Yes, a cube is a special type of rectangular prism where all six faces are squares.