eBay Seller Profit Calculator

Calculate eBay fees, payout, net profit, margin, and ROI instantly on any eBay listing page.

Instantly see your real eBay payout, fees, profit margin and ROI — right on the listing page. No account, no data upload. See your real eBay profit before you list — not after. eBay Seller Profit Calculator adds a small floating card directly on listing pages that shows exactly what you'll walk away with after eBay's fees: Final Value Fee, Insertion Fee, Promoted Listings, and international fees — all broken down, all editable. WHY THIS TOOL eBay's fee structure is complicated and changes often. Most sellers either guess, or use a spreadsheet that's already out of date. This extension calculates your real numbers live, using fee rates you can see and edit yourself — nothing is hidden behind a black-box "AI suggestion." WHAT IT SHOWS - Net profit in dollars, after every eBay fee - Profit margin % and ROI % - Red / yellow / green profit health indicator (you set the thresholds) - Reverse calculator: tell it your target margin or ROI, it tells you the maximum price you can afford to pay for an item WHAT IT DOESN'T DO This is a calculator, not a sourcing tool. It won't recommend what to sell or scrape "suggested prices" from anywhere. Every number it shows comes from a formula you can inspect in the Settings page — no guessing, no black box. PRIVACY All calculations happen locally in your browser. Nothing you type is uploaded anywhere. No account required, no tracking. FEE RATES eBay updates its fee structure periodically. This extension's default rates are dated and sourced (see Settings page), and every rate is user-editable so you can keep it accurate even between our updates. Currently supports eBay.com (United States) listing pages.