A cubic foot is a unit of volume that represents the amount of space occupied by a cube with sides each measuring one foot (0.3048 meters) in length. It is symbolized as ft³ or cu ft and is part of the imperial and US customary measurement systems
. Specifically, one cubic foot equals:
- 1728 cubic inches (since 1 foot = 12 inches, and volume = 12 × 12 × 12)
- Exactly 28.316846592 liters
- About 7.48 US gallons of water
It is commonly used to measure the volume of air, water, timber, concrete, dirt, and storage space, as well as in shipping and construction to quantify capacity or space
. To calculate cubic feet for an object, multiply its length, width, and height in feet:
Cubic feet=length (ft)×width (ft)×height (ft)\text{Cubic feet}=\text{length (ft)}\times \text{width (ft)}\times \text{height (ft)}Cubic feet=length (ft)×width (ft)×height (ft)
For example, a box measuring 2 ft by 3 ft by 4 ft has a volume of 24 cubic feet
. In practical terms, a cubic foot is roughly the size of a typical cardboard box used in offices or for moving, making it a useful visual reference for volume
