Amazon FBA Fee Calculator
This free Amazon FBA fee calculator estimates what Amazon keeps on every sale — the referral fee plus the FBA fulfillment fee for your product's size tier — and shows your total fees, net payout per unit, and margin percentage before you commit to inventory.
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Enter a price to see the estimated fees and your net payout.
How to use this calculator
Enter your product's sale price and pick the FBA size tier it falls into, then set the referral fee percentage for your category — 15% is the default for most categories. Results update instantly as you type.
The estimate shows your referral fee, fulfillment fee, total FBA fees, net payout per unit, and margin percentage — everything you need to sanity-check whether an item is worth selling through FBA.
How it works
The calculator does two simple steps. First, the referral fee: the sale price multiplied by your category's referral rate (for example, $25 × 15% = $3.75). Second, the FBA fulfillment fee: a flat per-unit amount looked up from the size tier you selected (Small standard is estimated at $3.22).
referral = price × referral rate · fulfillment = size-tier flat fee (estimate)
total fees = referral + fulfillment · net payout = price − total fees
margin % = net payout ÷ price × 100
All fees shown are estimates. Amazon changes its referral and fulfillment rates periodically, and this tool does not include monthly storage, inbound placement, returns, or other fees. Always verify your product's exact fees in Seller Central before making pricing or inventory decisions.
Frequently asked questions
How does this Amazon FBA fee calculator work?
Enter your item's sale price, its FBA size tier, and your referral fee percentage. The calculator estimates your referral fee (price × referral rate), looks up the FBA fulfillment fee for the selected size tier, and subtracts both from the price to show your total fees, net payout, and margin percentage.
What is the Amazon referral fee?
Most Amazon categories charge a 15% referral fee on the total sale price, which is this calculator's default. Rates actually range from about 6% to 45% by category, with a minimum fee per item. Enter your category's exact rate for a more accurate estimate.
Which FBA size tier is my product?
Amazon classifies items by weight and dimensions into size tiers such as Small standard, Large standard, and oversize tiers. Measure and weigh your packaged product, then check Amazon's official size tier table in Seller Central — the tier you pick here determines the fulfillment fee used.
Are these FBA fees exact?
No — these are estimates. Amazon revises referral and fulfillment fees periodically (often yearly), and extras like monthly storage, inbound placement, and optional services are not included. Always verify your product's exact fees in Seller Central's Revenue Calculator before making pricing decisions.