How is dimensional weight calculated?

The dimensional weight calculation is based on the length, height, and width of the package. 

The dimensional weight becomes the billable weight when the dimensional weight of your package exceeds its actual weight.

Here is how to calculate dimensional weight of a package:

  1. Calculate the cubic size of your package in inches. Multiply the length by width by height of your package (L x W x H). Round each measurement to the nearest whole inch, in other words round up. The resulting total is the cubic size of your package.
  2. How to determine dimensional weight: Divide the cubic size of your package in inches by 166 (for shipments within the U.S. and shipments between the U.S. and Puerto Rico) or 139 (for U.S. export and U.S. import-rated international shipments). Increase any fraction to the next whole pound. 
    • Example: a package measuring 8 x 8 x 6 (inches) = 288 divided by 166 = 1.735 pounds (rounded up to 2 pounds)
  3. When comparing the package's actual weight to its dimensional weight. The larger of the two weights is the billable weight and should be used to calculate the rate.
  4. For multiple-package shipments, total the billable weight of all packages in the shipment.