whats a cubic foot is a measurement-related question essential for calculating shipping volumes. One cubic foot equals 12 inches by 12 inches by 12 inches, or 1,728 cubic inches. This unit is commonly used by shipping companies to determine dimensional weight, especially for large packages. Knowing how to calculate or estimate a cubic foot helps individuals and businesses manage shipping costs more accurately. Understanding what’s a cubic foot is critical in logistics, whether you’re shipping domestically or internationally, and ensures proper package sizing and labeling.