Reseller Analytics — eBay Profit Calculator

Instant eBay profit, margin & ROI on any listing. Correct fees, no account access, all math in your browser.

Know your real profit before you buy or list — in one click. Reseller Analytics adds a live profit calculator to every eBay listing and to Seller Hub. Enter your cost and shipping, and it instantly shows your net profit, margin, and ROI with eBay's fees already deducted (13.25% general final value fee + $0.30 per order, adjustable per category, plus Promoted Listings %). Built for flippers, thrifters, and side-hustle sellers who need the margin before the money leaves their pocket. FREE • One-click profit / margin / ROI on any eBay listing • Auto-detects the listing price • Adjustable category fee % and Promoted Listings % • Save your last 5 calculations PRO • Unlimited saved calculations • CSV export to your spreadsheet • Sold-price analyzer — paste sold prices, get median, average and range • Free trial, then a simple monthly subscription PRIVATE BY DESIGN • No eBay login or account access — ever • All calculations run locally in your browser • No selling data sent to any server Questions or feature requests? Leave a review or reach out — we ship fast.