About

Built for sellers who want the real number.

SellerCalcs is a free collection of fee calculators for online sellers. Whether you sell on Amazon FBA, Etsy, or eBay, knowing your actual take-home profit before you list a product is the difference between a sustainable business and one that's unknowingly losing money on every sale.

Platform fees are complicated. Amazon charges both a fulfillment fee and a referral fee — and the fulfillment fee varies by size tier, weight, and time of year. Etsy stacks a listing fee, transaction fee, and payment processing fee on top of each other. eBay's final value fee changes by category. Most sellers either guess or use outdated fee tables. SellerCalcs fixes that.

What we offer

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Amazon FBA Calculator
Calculate FBA fulfillment fees by size tier and weight, referral fees by category, and net profit per unit. Rates reflect the 2025 non-peak schedule including the April 2026 fuel & logistics surcharge.
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Etsy Fee Calculator
Breaks down every Etsy fee — $0.20 listing, 6.5% transaction, 3% + $0.25 payment processing, and the optional 15% Offsite Ads fee — so you know your real margin before you price.
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eBay Fee Calculator
Covers eBay Managed Payments final value fees across five major categories, with an optional international sale surcharge. No guesswork on category rates.

Our principles

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Accuracy first
Every rate is sourced from official platform fee schedules, with links to verify. We update when platforms announce changes.
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No data collected
All calculations happen in your browser. Nothing you enter is sent to a server or stored anywhere.
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No sign-up required
No account, no email, no paywall. Every calculator and spreadsheet on this site is completely free.
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Offline tools too
Free Excel spreadsheets let you track and compare multiple products at once, even without internet access.

Keeping rates up to date

Amazon typically revises its FBA fee schedule once a year, usually in January. Etsy and eBay make changes less frequently. Whenever a platform announces a fee change, we update the relevant calculator and note the effective date.

We always link to the official source — Amazon Seller Central, Etsy's legal fees page, and eBay's selling fees help page — so you can cross-check any number at any time. For high-stakes decisions, we always recommend verifying directly with the platform.

Disclaimer

SellerCalcs is an independent site and is not affiliated with, endorsed by, or connected to Amazon, Etsy, or eBay in any way. All calculators are provided for informational purposes only. Fee schedules can change at any time — always verify current rates with the relevant platform before making business decisions.

Questions or feedback? Reach us at calcs.site@gmail.com or visit our Contact page.