Calculating Amazon FBA fees is crucial for determining the profitability of your products. In 2026, Amazon has introduced new fee structures that sellers must account for. This guide covers the two primary fees for FBA sellers: the Referral Fee and the FBA Fulfillment Fee.

1. The Referral Fee

The referral fee is a percentage of the total sales price (including shipping and gift wrap charges) that Amazon collects for facilitating the sale. This fee varies by category and marketplace, typically ranging from 8% to 15%.

2. The FBA Fulfillment Fee

The fulfillment fee covers the cost of picking, packing, shipping, and providing customer service for your products. It is calculated based on the product's size tier and outbound shipping weight, which can vary significantly between marketplaces like the US, UK, and EU.

Size Tiers

Amazon categorizes products into size tiers, such as Small Standard, Large Standard, and Oversize. The tier is determined by the product's dimensions (length, width, height) and weight.

Dimensional Weight

For larger items, Amazon uses dimensional weight (volume / 139) to determine the billable weight. If the dimensional weight is greater than the actual weight, the dimensional weight is used to calculate the fulfillment fee.

Using the Global Amazon FBA Fee Calculator

To simplify this process, you can use our free Amazon FBA Fee Calculator. Simply select your marketplace, enter your product's selling price, cost of goods, weight, dimensions, and category to instantly estimate your fees and profit margin.