Profit Margin Calculator

MarginMate helps online sellers check listing profit before they publish. Enter your sale price, item cost, shipping, packaging, ads, and marketplace fees, then use built-in presets for Amazon, Temu, eBay, AliExpress, TikTok Shop, SHEIN, Etsy, or a custom rate.

The calculator shows net profit, margin percentage, ROI, break-even price, and the sale price needed to reach your target return. Watch-outs highlight loss-making listings, thin margins, shipping subsidies, and high fee pressure.

Save useful calculations as scenarios and load them again when you want to revisit sourcing costs, shipping choices, or target prices.