Dimensional Weight

The calculation of a packages weight, based on the dimensions of the package, as opposed to its physical weight. Calculated by multiplying length x height x width (in inches), and then dividing by a dimensional factor, often depending on the packages destination (i.e. domestic vs. international). This is as of January 1, 2017, UPS dimensional factors of 166 and 139 depending on the package size and FedEx uses a dimensional factor of 139; however based on typical box sizes and products being shipped, companies may negotiate a more favorable dimensional factor with the carriers.