what is cubic foot refers to a unit of volume measurement used in shipping, logistics, and real estate. One cubic foot is the volume of a cube with edges that are each one foot long, which equals 1,728 cubic inches. In shipping, cubic feet are commonly used to calculate the size of a package to determine the shipping cost. Shipping carriers like UPS, FedEx, and USPS often use cubic feet to estimate the dimensional weight of packages, which can affect the price of shipping. For example, if a package is large but lightweight, its dimensional weight may be calculated based on its volume rather than its actual weight. Understanding cubic feet is essential for determining shipping costs, especially for large or bulky items that take up more space in the carrier’s vehicle or airplane.