FBA Profit Calculator (Free) by Gorilla ROI

See Amazon FBA profit on any listing. Free, no sign-up. Fees come from Amazon's own Revenue Calculator.

Know your potential profit before you source an Amazon product. Check Amazon fees, add your costs, and estimate profitability directly on supported Amazon product pages. Built by Gorilla ROI to help sellers compare opportunities with a clearer view of the numbers. CALCULATE PROFIT AFTER FEES AND COSTS Add your product cost, inbound shipping, prep, advertising, other costs, and returns to see: • Net profit per unit • Profit margin • Return on investment (ROI) • Break-even selling price • Maximum advertising spend before profit reaches zero SEE AMAZON’S FEES Get a clear breakdown of referral fees, FBA fulfillment fees, monthly storage fees adjusted for the season, and closing fees where applicable. Inbound placement fees appear automatically when Amazon’s fee data becomes available. The extension retrieves referral fees directly from Amazon. If a fee is unavailable, simply select the product’s category to calculate it. TRY A DIFFERENT SALE PRICE Type a deal, past, or planned promotional price to see how your fees and profit change. Amazon’s fees are fetched again for the price you type. SWITCH BETWEEN OFF-PEAK AND PEAK FEES See how the season changes your fulfillment and storage fees, and your profit. LOAD FIGURES FROM AMAZON’S REVENUE CALCULATOR The extension automatically retrieves fee data from Amazon and updates the initial estimates. If you’re signed in to Seller Central, the results include the package dimensions Amazon’s calculator uses. If you’re signed out, the extension still retrieves Amazon’s fee figures directly in the panel, but without package dimensions. COMPARE PRODUCTS IN YOUR SPREADSHEET Copy a product’s results and paste them directly into a spreadsheet. Add more products to build a comparison sheet. You can copy a row before entering your product cost. Fees and seller proceeds are included, while profit fields stay blank until you add a cost. SAVE YOUR COST PRESETS Save frequently used cost inputs and reuse them across listings without retyping. CLEAR ABOUT ESTIMATES AND LIMITATIONS Product dimensions on a listing can differ significantly from the packaged dimensions Amazon uses to calculate fees, especially for items that fold or pack down. Until Amazon’s own figures load, results are clearly marked as estimates and are not presented as a confident profitability recommendation. If a price cannot be read reliably, the extension tells you instead of displaying an uncertain number. Unsupported currencies or delivery locations are flagged, and calculations are paused to prevent misleading results. FREE TO USE No account required. No sign-up. No trial. Built by Gorilla ROI, the ecommerce data platform for Amazon, Shopify, Walmart, TikTok, Facebook/Meta Ads, and more. Connecting your data to Google Sheets and expanding into AI workflows through MCP.