For package delivery, the size and weight are used to determine the delivery charge. The method of calculating shipping charges differs depending on the shipping company.
Size is calculated by measuring three dimensions: Depth, width, and height.
Depending on the shipping company, size may be calculated by comparing the actual weight to the volumetric weight.
Volumetric weight is a weight calculated based on the size of the package.
If the volumetric weight of a shipment is greater than the actual weight, shipping charges are calculated based on the volumetric weight.
The formula for volumetric weight is as follows:
Volumetric weight = (Depth [cm] x width [cm] x height [cm]) ÷ 5000 (cm3/kg).
