FREE TOOL · THE WEEKEND HUNT
Reselling Profit Calculator
Know what a thrift, estate-sale or storage-auction find could actually earn before you buy.
Opens our interactive Weekend Hunt calculator in a new tab. No sign-in required.
One tool, better buying decisions
Whether you sell on eBay, Whatnot or elsewhere, sale price alone never tells you the whole story. Use this free calculator to estimate what stays in your pocket after the costs that come with selling a secondhand item.
See your real costs
Enter what you paid, what the buyer pays, postage, packing supplies, platform fees and promotion charges. The estimate updates as you type.
Set a maximum buy price
Tell the calculator how much profit you want. It estimates the most you can pay for the item and still reach that target.
Check margin & ROI
See estimated profit in dollars, profit margin, return on costs and the break-even sale price before committing to a purchase.
A quick example
You find a collectible for $8 and think it could sell for $45. Enter any shipping charged to the buyer, what you’ll pay to ship it, your supplies and your actual marketplace fees. You’ll immediately see an estimated net profit and whether it clears your target. Swap in your own numbers whenever you’re sourcing.
Important: Marketplace fees vary by category, account and transaction. The calculator starts with example rates, which you can change; its results are estimates, not official fee quotes or tax advice.
