Everything you need to price, profit-check, and grow a reselling business — calculators for eBay, Poshmark, Mercari, Depop & Amazon, plus step-by-step guides. 100% free, no sign-up.
Enter your price and get an instant breakdown of fees, net profit, ROI, and break-even.
Net profit, fees, ROI & breakeven across eBay, Poshmark, Mercari, Depop & Amazon in one place.
Open ToolGet a 0-100 opportunity score on whether any item is worth flipping before you spend a dime.
Open ToolFinal value fee, promoted listings, and net profit for any eBay sale. Store subscriber discounts included.
Open Tool$2.95 flat or 20%? See your exact Poshmark net profit, break-even, and ROI instantly.
Open ToolLearn which platform to use, what to flip, and how to start.
Roughly 70% of new resellers lose money on their first few flips because they forget to subtract platform fees and shipping from their "profit." A $30 sale on eBay keeps only ~$25.75; on Poshmark only $24. If you paid $15 for the item plus $5 shipping, you've made almost nothing — or a loss. Our calculators do this math so you never sell at a loss again.