Resale profit calculator

What you keep after fees on every platform, the most you should pay, or buy or pass. Free, no account.

You’d pay, all inPrice + shipping + taxYou’ll sell forYour guessSell onWeight, packedlbozShip toBox and packingBox size, inches (optional)A big light box is charged by size

Your rulesAt least $25 kept and 50% on cost. Pro sets your own rules, your promoted-listing rate, and checks a whole list at once.

Enter what you’d pay, what you’ll sell for and the weight.

The sale price is your guess. Postage is the USPS Ground Advantage Commercial price published by USPS (prices from Oct 4, 2026); eBay Labels and Pirate Ship can be a little lower. The buyer pays the label on Poshmark; a local sale has no postage or box. Fees follow each platform’s published rules. Before income tax.

How it’s worked out, step by step: How to work out resale profit after fees. Each platform’s rules side by side: Where you keep the most.Found something to flip? Search it to see the real total at each store before you buy.