what is cubic ft is a measurement used in shipping and logistics to calculate the volume of a package or shipment. Cubic feet are calculated by multiplying the length, width, and height of a package in inches and dividing the total by 1,728 (since there are 1,728 cubic inches in a cubic foot). This calculation is critical when determining shipping costs because many carriers, including UPS and FedEx, charge based on the size and weight of the package. Understanding cubic feet is essential for businesses to estimate shipping expenses and optimize packaging for cost-effective delivery.