How Do You Calculate Volume With Cubic Feet?

Multiply a square's length, width and height to find the volume.

Whether figuring out real-life issues or simply calculating experimental volume in a classroom, finding how much an object holds can serve as a useful tool. Since all objects carry a unique shape and size, the formula for calculating the space within a cube, a prism, a sphere and more differs as well.

Things You'll Need

• Measuring device

Instructions

1. Measure the length, width and height of the object with a measuring tape or ruler. If the object has circular surfaces, measure the diameter and radius as well as the height.

2. Determine the formula for your object. A list of volume formulas can be found using the Online Math Learning website.

3. Convert your units to feet if needed by using a conversion chart or finding one online.

4. Plug the dimensions into the formula. For example, if the length, width and height of a rectangle is 4 ft. by 4 ft. by 10 ft. you would plug it into the volume formula for a rectangle: (width) x (length) x (height). The answer is reflected in cubic feet: (4 ft.) x (4 ft.) x 10 (ft.) = 160 cubic ft.

References

• Jans Slumber: Calculating Cubic Feet
• Plastic Storage Tank: Tank Volume Calculator

Resources

• Online Math Learning: Volume Formula
• Online Conversion: Common Length Conversions