The free Amazon FBA Profit Calculator
Enter your sell price, product cost, shipping cost, referral fee category, weight and package dimensions to see your real profit per item and margin percent.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
Illustration. Open the tool for the real thing.
See it in action
Sample input: Sell price ($) = 25; Product cost ($) = 6; Inbound shipping cost per unit ($) = 1; Weight — pounds (lb) = 1
What is the Amazon FBA Profit Calculator?
Enter your product's sell price, your cost to make or source it, your inbound shipping cost per unit, Amazon's referral fee percentage for your product category (about 15% for most categories, selectable), and — instead of typing in a fulfillment fee you'd have to already know — your product's real weight and package dimensions. This tool auto-classifies your product into Amazon's actual size tier (small standard, large standard, small/medium/large/special oversize) using the real weight, longest-side, second-side, height and length+girth thresholds, then looks up the matching fulfillment fee from an embedded copy of Amazon's published fee schedule, so the math matches your real product without a trip to Seller Central.
Amazon's real fee structure has two main pieces: the referral fee (a percentage of the sale price that varies by category, roughly 8-17% with most categories at 15%) and FBA fulfillment fees (a per-unit fee based on the size/weight tier your product actually falls into, covering picking, packing and shipping). This tool auto-computes both from your real numbers — no guessing, no manual fee lookup.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Enter weight and dimensions; the tool classifies your real size tier and looks up the fee — you never have to already know it.
Uses Amazon's actual small/large standard and small/medium/large/special oversize thresholds (weight, sides, length+girth).
Choose from Amazon's actual referral fee tiers instead of guessing a flat 15%.
Sell price minus product cost, shipping, referral fee and the auto-calculated fulfillment fee — no hidden math.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
New and existing Amazon sellers
Vet a product idea's real profitability before committing inventory budget, without needing to already know Amazon's fee for a product you haven't listed yet.
Try it freeSourcing and product research
Compare multiple product weights/dimensions against the same sell price to find the best margin.
Try it freeAnyone quoted FBA fees by a supplier or tool
Cross-check that the numbers actually leave a real profit using an independently calculated fee.
Try it freeHow it compares
A plain look at this tool next to the usual alternative.
| This calculator | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
How is the fulfillment fee calculated now?
Automatically — enter your product's weight and package dimensions and the tool classifies the real Amazon size tier (standard vs oversize, and which sub-tier) then looks up the matching fee from an embedded copy of Amazon's published fee schedule. You no longer need to already know or manually type in the fee.
Which fee schedule is this based on?
Amazon's published 2024 US FBA fulfillment fee schedule (effective Jan 2024), the most recent full schedule built into this tool. Amazon updates fulfillment fees roughly annually (and sometimes mid-year), so confirm your exact current rate in Seller Central or the Revenue Calculator for final pricing — this is disclosed directly in the result.
What is Amazon's referral fee?
A percentage Amazon takes from every sale, varying by category — most categories are 15%, though some (like electronics accessories or media) are lower and a few are higher; check Seller Central for your exact category rate.
Does this include storage fees or advertising?
No, this is a simplified per-item profit snapshot covering sell price, product cost, shipping, referral fee and the auto-calculated fulfillment fee only; monthly storage fees and ad spend should be subtracted separately for a full picture.
How accurate is the auto-calculated fee?
It follows Amazon's real, published tiering rules and fee bands closely, but Amazon periodically revises exact dollar amounts, especially for oversize tiers — the tool flags large/special-oversize results as the ones most worth double-checking.
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Try the Amazon FBA Profit Calculator now
Real per-item profit and margin for Amazon FBA, with the fulfillment fee auto-calculated. Free to use.
Try it free