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This article applies to selling in: United States

List of key fee terms

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

Fee term Description
Dimensional weight Calculation of a 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 Item weight plus Amazon's packaging or dunnage to deliver an order to the buyer. The shipping weight is calculated based on the item’s unit weight or dimensional weight, plus the packaging weight.
Unit weight Measures how much your product weighs when packaged.
Fee categories Fee categories determine which rates apply to a particular product for certain fee types. Your product’s fee category might not be the same as the category where it appears on the Amazon retail site.
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