Cubic Feet Calculator
Calculate volume in cubic feet from length, width and height.
How to Use the Cubic Feet Calculator
Enter length, width and height in feet to calculate volume in cubic feet.
Practical Example
A box measuring 4 ft by 3 ft by 2 ft has a volume of 24 ft³.
Factors That Affect the Result
Irregular shapes, internal obstructions, measurement units and rounding can affect the practical volume available.
Frequently Asked Questions
How do I calculate cubic feet?
Multiply length by width by height when all dimensions are in feet.
Can I use inches?
Convert inches to feet first or use a compatible converter.
Is cubic feet an area unit?
No. It measures three-dimensional volume.
Related Tools
Working with Cubic Feet
Cubic feet measure volume, not floor area. For a rectangular space, multiply length × width × height after converting every dimension to feet. A box measuring 2 ft × 3 ft × 4 ft has a volume of 24 ft³.
When estimating soil, storage, airflow space or construction material, account for the actual shape rather than using a rectangular formula for every object. Irregular spaces may need to be divided into simpler sections. Keep linear units consistent before multiplying, because mixing inches and feet creates large volume errors.