List of key fee terms

Learn about key terms to help understand how fees are calculated.

Fee term	Description
Dimensional weight	Calculation of the volumetric weight of a package, using the package’s length, width and height.
Product size tiers	Measurement categories based on the unit weight, product dimensions, and dimensional weight of the packaged item.
Product dimensions and volume	Measures the product’s size when fully packaged and ready to ship in accordance with FBA policies and requirements.
Shipping weight	The packaged item weight that is used to determine fulfilment fees. The shipping weight is calculated based on the item’s unit weight or dimensional weight and size tier.
Unit weight	Measure of how much your product weighs in its retail packaging.