The Amazon FBA Calculator helps you estimate the total fees associated with selling products through Amazon's Fulfillment by Amazon program. It calculates referral fees (typically 8–15% depending on category), FBA fulfillment fees based on item size and weight, and monthly storage fees so you can accurately determine your profit margins before listing a product.

Whether you're sourcing new products or evaluating existing inventory, this tool gives you a clear breakdown of Amazon's fee structure so you can make informed pricing decisions and maximize your FBA profitability.

Enter your product's selling price, cost of goods, and shipping cost to Amazon's warehouse.
Select the appropriate product category to apply the correct Amazon referral fee percentage.
Specify the item's dimensions and weight so the calculator can determine the correct FBA fulfillment fee tier.
Review the detailed fee breakdown including referral fees, FBA fees, and storage costs, along with your estimated net profit and margin.

Calculates Amazon referral fees by category with rates ranging from 8% to 15%, covering all major product categories.
Estimates FBA fulfillment fees based on product size tier (small standard, large standard, small oversize, etc.) and shipping weight.
Includes monthly and long-term storage fee estimates so you can factor in inventory holding costs.
Provides a complete profit analysis with net profit, ROI, and margin percentage to help you evaluate product viability.

What is the Amazon referral fee?: The referral fee is a percentage of the selling price that Amazon charges for each item sold. It varies by category — most categories charge 15%, while others like personal computers charge 6% and Amazon device accessories charge 45%. This calculator automatically applies the correct rate based on your selected category.
How are FBA fulfillment fees determined?: Amazon bases FBA fulfillment fees on the product's size tier and shipping weight. Items are classified into tiers such as small standard-size, large standard-size, or oversize. Heavier and larger items incur higher fees. The calculator uses your product dimensions and weight to determine the correct tier and fee.
Does this calculator include storage fees?: Yes. The calculator estimates monthly inventory storage fees based on your product's size and the time of year. Amazon charges higher storage rates during Q4 (October–December). Long-term storage fees for inventory stored over 271 days are also factored in.