Reseller profit calculator
Pick a marketplace, enter your sale price, cost, and shipping, and see your real profit, ROI, and margin after fees. No sign-in, no math.
Leave at 0 if the buyer covers shipping.
Know your number before you source
The fee on your likely sale platform is part of the cost of every item you buy. A $50 sale nets you a different amount on Poshmark than on Depop, so the smart move is to work backward: decide what you want to keep, then let the calculator show what the deal actually leaves you after the marketplace takes its cut.
For the fee details behind each platform, see the reseller fees guide, and to sell on more than one at once, the cross-listing guide.
Questions, answered
How do I calculate reselling profit?+
Take your sale price, then subtract the marketplace selling fee, what you paid for the item, and any shipping you cover. What is left is your profit. ROI is that profit divided by what you invested (cost plus shipping).
Which marketplace fee does this use?+
Each one, based on your selection. Poshmark is 20% (or $2.95 under $15), Mercari is a flat 10%, Depop (US) is 3.3% plus $0.45, and eBay is about 13.6% plus a per-order fee. Pick the platform and the calculator applies its current fee.
What counts as a good ROI for reselling?+
It varies by category and how fast you turn inventory, but many resellers aim for at least a 50% to 100% ROI on each item to cover slow sellers and time. Use the ROI figure to compare deals, not as a hard rule.
Does this include taxes and promoted listings?+
No. It applies each marketplace’s main selling fee so you can compare platforms cleanly. Sales tax is usually collected from the buyer, and optional promoted or boosted listings are extra ad spend you would subtract separately.
Score the buy before you make it.
ResellerIQ scores a deal from real sold-comp data, lists it across every marketplace, and tracks your true profit per item, cost basis included.
No credit card to start.