How to Measure Cubic Feet

How to Measure Cubic Feet thumbnail
A basic calculator makes cubic feet calclations a cinch.

Cubic feet is a measure of volume and is used commonly in home improvement and building projects for things like concrete quantities, airflow, and storage space. The basic formula is simple: multiply the area's width x depth x height. The only tricky part is remembering to convert all of your values to feet before multiplying them. Does this Spark an idea?

Things You'll Need

  • tape measure
  • calculator
  • pencil
  • paper
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Instructions

    • 1

      Measure or collect the data of the area's width, depth (or length), and height. For example, if you're looking for the cubic feet of a bedroom, measure the room's width along one wall, its length along the adjacent perpendicular wall, and its height from floor to ceiling.

    • 2

      Convert all inch increments to feet by dividing by 12. For example, if your room's width is 10 feet, 6 inches, divide 6 by 12 to get 0.5. Therefore, the width is 10.5 feet.

    • 3

      Multiply the dimensions to find the cubic feet. For example, if your room measures 10.5 feet wide x 12 feet long x 8 feet high, its total volume is 1,008 cubic feet (10.5 x 12 x 8 = 1,008).

Tips & Warnings

  • Convert cubic feet to cubic yards by dividing by 27:

  • 1,008 cubic feet divided by 27 = 37.33 cubic yards.

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  • Photo Credit Thinkstock Images/Comstock/Getty Images

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