Know exactly what you keep from every sale
Free fee & profit calculators for online sellers. Every number is quoted from the marketplace's official fee page, dated, and tested against the marketplace's own published examples. We'll email you when the fees change.
Calculators
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eBay Fee & Profit Calculator
13.6% final value fee, per-order fee, category exceptions — and what you actually keep.
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PayPal Fee Calculator
3.49% + $0.49 and every other rate — plus what to charge to receive an exact amount.
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Etsy Fee & Profit Calculator
All four Etsy fees on one sale — listing, 6.5% transaction, processing, Offsite Ads.
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Stripe Fee Calculator
2.9% + $0.30 plus the surcharges other calculators forget.
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Square Fee Calculator
In-person, online and keyed-in rates across Square's plans.
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Whatnot, Depop, Poshmark & Mercari Fees
Four resale apps, four different fee models — one calculator with each platform's verified rates.
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Profit Margin Calculator
Margin, markup and profit from any two numbers — and pricing for a target margin.
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Markup Calculator
Cost + markup → price, with the margin you're really earning.
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Food Cost Calculator
Recipe costing, food-cost percentage and menu pricing by target.
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Compare All Marketplace Fees
One sale amount → what every platform takes, cheapest first.
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eBay & Etsy Fees Explained (2026)
The plain-English guide: every fee, what it really applies to, and the five traps.