FeeCalc — Seller Fee Calculator

Calculate exact seller fees across 11 platforms. eBay, Amazon, Etsy, Poshmark, Mercari & more. Free, 2026 rates, no data collected.

FeeCalc calculates your exact seller fees and net profit in real time — as you type, no button needed. Covers 11 major reselling platforms with accurate 2026 fee rates. Enter your sale price, COGS, and shipping cost to see a full fee breakdown including payout, net profit, and margin. Features: - Live calculations across 11 platforms - Full fee breakdown — every fee itemized - Net profit and margin after COGS and shipping - Session history — restore your last calculation instantly - Platform-specific options like store tiers, seller levels, and fulfillment types 100% free. No account required. No data collected. All calculations run locally on your device. Built by a reseller, for resellers.