Amazon ROI calculator.
Before you buy inventory, know your real return. Enter your numbers and see profit, margin, and ROI per unit.
Get a free audit ↗ROI is profit divided by what you invest to sell one unit (product plus prep and inbound). Margin is profit over sale price.
They answer different questions.
ROI tells you how hard your cash works: profit per dollar invested. Margin tells you how much of each sale you keep. A product can have great margin but weak ROI if the unit cost is high.
Sourcing rule of thumb
Many private-label sellers target 100 percent or more ROI to fund reorders and ads. Below 30 percent, one fee change can wipe out the profit.
Fees are the swing factor
Referral plus FBA often exceeds product cost. Get the exact fee number from the FBA profit calculator.
What is a good ROI on Amazon?
Private-label sellers often aim for 100 percent or more so reorders and advertising are self-funding. Wholesale and arbitrage models run on lower ROI but faster turns.
How is Amazon ROI calculated?
Net profit per unit divided by your investment per unit (product cost plus prep and inbound shipping), as a percentage.
Is ROI or margin more important?
Both. ROI shows how fast your cash compounds; margin shows resilience to fee and price changes. Weak on either is a risk.
Estimates for planning only. Verify current Amazon fees in Seller Central; results depend on your inputs.
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