Amazon marketplace
Estimate Amazon FBA unit profit, referral fee, fulfillment, storage allocation, inbound placement, advertising, and return loss before product selection or price changes.
Rules updated
2026-07-09
Access verified: 2026-07-09
Defaults are editable assumptions. Adjust them to your category, plan, invoices, and logistics contracts.
Revenue = selling price + shipping charged to the buyer.
Amazon platform fee = max(revenue × referral fee rate, minimum referral fee). FBA, storage, inbound placement, shipping, packaging, ads, and other costs are modeled as unit fixed costs.
Target price is solved from fixed costs and variable rates, then buyer-paid shipping is subtracted.
This MVP does not model full size tiers, long-term storage, removal orders, return processing fees, low-inventory fees, or category-specific ladders.
Warnings appear when ad cost, returns, variable rates, negative profit, or target margin assumptions become risky.
Use the exact category rate from Seller Central or Amazon's fee schedule. The default 15% is only an editable planning assumption.
No. It is a fast unit-economics model. Reconcile final fulfillment, storage, refund, and category charges with Amazon reports.
Many seller models treat them as per-unit allocations, so the calculator keeps them visible instead of hiding them inside one FBA number.
This tool is for business planning and education only. It is not financial, tax, legal, or marketplace compliance advice. Platform fees, promotions, logistics, taxes, refunds, payment processing, statement adjustments, and exchange rates change. Use official dashboards, settlement reports, advisors, and contracts as the source of truth.