Margin Atlas — Amazon Profit Calculator

Margin Atlas helps Amazon sellers estimate product profitability before committing to inventory. Capture available details from an Amazon product page, enter your own costs, and compare fulfillment and pricing scenarios in one local workspace. Features: - Capture product title, ASIN, current price, marketplace, selected variation, brand, ratings, reviews, features, and specifications when available. - Calculate estimated profit per unit, net margin, ROI, monthly profit, and inventory investment. - Compare Fulfillment by Amazon (FBA) with seller fulfillment (FBM), and compare saved product scenarios. - Explore break-even prices, target-margin prices, and price sensitivity. - Model purchase costs, shipping, referral fees, fulfillment, storage, advertising, returns allowances, and tax assumptions. - Work across 23 Amazon marketplaces using local currencies. - Save up to 100 product scenarios locally, export CSV reports, and back up or import your library as JSON. - Choose light or dark mode and print product reports. Getting started: Open an Amazon product detail page and click the Margin Atlas toolbar icon. Review the captured listing, confirm the variation and price, and enter your purchase costs and applicable fees. Your scenarios stay in local Chrome extension storage. No sign-in or seller account connection is required, and the extension does not upload your product research. Calculations are estimates based on your inputs. Purchase costs and seller-specific fees require your inputs; selected US fee presets are included. Prices and availability can change, and unavailable or ambiguous prices can be entered manually. Margin Atlas is independent and is not affiliated with or endorsed by Amazon.