what is 4 cubic feet refers to the measurement of volume that indicates the amount of space an item or shipment occupies. To calculate the cubic feet, you multiply the length, width, and height of an object in feet. For businesses that ship products or store goods, understanding the volume in cubic feet is essential for calculating shipping costs and determining appropriate packaging. E-commerce businesses that sell large items or bulk products must consider the cubic footage of their shipments to optimize storage space and reduce shipping expenses.