How is "Dimensional Weight" calculated for air cargo?

Dimensional weight is calculated by using a specific formula that takes into account the size of the cargo in relation to its actual weight. The calculation involves measuring the length, width, and height of the package and then applying a formula that divides the product of these dimensions by a dimensional weight factor provided by the carrier. This factor varies among different shipping companies but is typically set to account for the cubic space that the package occupies on an aircraft or vehicle, which can be crucial for air cargo where space is at a premium.

This method of calculation is significant because it ensures that charges reflect not just the actual weight of the cargo, but also its volume, allowing carriers to optimize their space and manage costs effectively. In contrast, simply taking the total weight of the cargo or estimating based on size categories would not provide an accurate assessment of how much space the cargo will occupy, nor would it consider volume in relation to actual weight.