Amazon FBA ROI Calculator 2026 USA — True Product Return on Investment
Amazon FBA ROI Calculator 2026 USA: calculate true net profit, ROI, ACOS, and margin on any Amazon FBA product — including all fees (referral, fulfillment, storage), PPC advertising spend, and inbound shipping. Used by Amazon sellers across the USA.
📦 Amazon FBA ROI Calculator
Revenue
Product Costs
Manufacturing / wholesale cost
Amazon Fees
Typically 8–15% by category
Avg small standard: $3–$5
Per unit in FBA warehouse
Amazon FBA Fee Structure 2026
The most common mistake Amazon sellers make is calculating ROI on product cost only. You must include all cost components to get an accurate picture.
| Fee Type | Typical Range | Notes |
|---|---|---|
| Referral Fee | 8–15% of sale price | Varies by category. Books: 15%. Electronics: 8%. Toys: 15%. |
| FBA Fulfillment Fee | $3.22–$6.50+/unit | Based on size tier and weight. Small standard is most favorable. |
| Monthly Storage | $0.87/cu ft (Jan–Sep) | $3.63/cu ft Oct–Dec (Q4 peak). Long-term storage: $6.90+ |
| Inbound Shipping | $0.50–$2.00+/unit | Ship to Amazon fulfillment center from supplier or prep center. |
| PPC Advertising | $0.50–$3.00+ per click | Average CPC varies by category and competition level. |
What is ACOS and Break-Even ACOS?
ACOS = PPC Spend ÷ PPC Revenue × 100. Your break-even ACOS equals your gross margin percentage. If you make 40% gross margin on a product, any ACOS above 40% means your ads are costing more than they earn. Target ACOS = 50–75% of your gross margin for profitable advertising.
Frequently Asked Questions
How do you calculate ROI on Amazon FBA?
Amazon FBA ROI = ((Monthly Revenue − All Monthly Costs) ÷ Monthly Investment) × 100. All costs include product, Amazon referral fee, FBA fulfillment, storage, PPC, inbound shipping, and returns processing. Investment = inventory cost + PPC spend + launch costs.
What is a good ROI for Amazon FBA?
Target 30–100%+ ROI on your product investment. On total invested capital (COGS + fees + PPC), 20–50%+ is solid. Below 15% ROI is too thin given Amazon competition risk, account suspension possibility, and inventory holding costs.
What fees does Amazon charge FBA sellers?
Main fees: referral fee (8–15%), FBA fulfillment fee ($3–$7/unit), monthly storage ($0.87–$3.63/cu ft), and advertising cost. Additional fees: inbound shipping, prep fees, return processing, and long-term storage penalties if inventory sits over 365 days.
What is ACOS in Amazon advertising?
ACOS = PPC Ad Spend ÷ Ad Revenue × 100. Lower is better. Break-even ACOS = your gross margin %. If your margin is 35%, ACOS above 35% means advertising is unprofitable. Most profitable sellers run 15–30% ACOS on established products.