Enter the attic width (ft), the attic height (ft), and the attic length (ft) into the Attic Volume Calculator. The calculator will evaluate and display the Attic Volume. 

Attic Volume Formula

The following formula is used to calculate the Attic Volume. 

AV = W * H * L * .5
  • Where AV is the Attic Volume (ft^3)
  • W is the attic width (ft) 
  • H is the attic height (ft) 
  • L is the attic length (ft) 

To calculate the attic volume, multiply the attic width, height, and length, then divide by 2.

How to Calculate Attic Volume?

The following example problems outline how to calculate Attic Volume.

Example Problem #1

  1. First, determine the attic width (ft).
    1. The attic width (ft) is given as 3.
  2. Next, determine the attic height (ft).
    1. The attic height (ft) is calculated as: 4.
  3. Next, determine the attic length (ft).
    1. The attic length (ft) is found to be: 20.
  4. Finally, calculate the Attic Volume using the formula above: 

AV = W * H * L * .5

Inserting the values from above yields: 

AV = 3 * 4 * 5 * .5 = 30 (ft^3)

Example Problem #2

The variables needed for this problem are provided below:

attic width (ft) = 5

attic height (ft) = 6

attic length (ft) = 20

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer. 

AV = W * H * L * .5 = (ft^3)