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Every calculator on the site, with what it answers.
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eBay Fee & Profit Calculator (2026)Fee charged on item + shipping + tax; 15 category tables
Mercari Fee & Profit Calculator (2026)10% of item + buyer-paid shipping
Poshmark Fee & Profit Calculator (2026)$2.95 under $15, 20% from $15
Whatnot Fee & Profit Calculator (2026)Tiered commission from Sep 21, 2026 (new sellers Sep 28)
Depop Fee & Profit Calculator (2026)No selling fee; 3.3% + $0.45 processing