Useful Tools Online

Marketplace Fee Comparison Calculator

Compare side-by-side net profit and margins across Amazon FBA, Etsy, and eBay taking into account referral fees, fulfillment, and ad spend.
Amazon, eBay & Etsy Official Fee SchedulesRuns on your device

Inputs

Results update live
All fees are manual inputs. Marketplace programs change frequently—use Seller Central / Etsy / eBay fee pages for your category.
Amazon FBA
Etsy
eBay
Cite this calculator

Manual fees only; 30% margin list price uses simplified fixed-fee stack.

Last reviewed: August 2026

Marketplace Fee Comparison Calculator. (August 2026). Useful Tools Online. https://usefultoolsonline.com/marketplace-fee-comparison-calculator/

Interpretation

Channel choice

Lower referral % does not always win—fulfillment, ads, and returns can flip the ranking.

Watch out

Common mistakes

  • Using headline referral rate without payment processing.
  • Ignoring FBA size-tier jumps.

Related tools

Adjacent decisions

Amazon FBA Profit CalculatorDeep-dive Amazon unit economicsChannel Pricing CalculatorSet list price per channel margin targetPricing CalculatorGeneral markup and margin pricingDropship Pricing CalculatorCompare with non-marketplace fulfilment

FAQ

Frequently asked questions

How the calculation works and where its limits are.

How do marketplace selling fees differ between Amazon, Etsy, and eBay?

Amazon charges category referral fees (8% to 15%) plus FBA pick/pack weight fees. Etsy charges a $0.20 listing fee, 6.5% transaction fee, and payment processing (3% + $0.25). eBay charges final value fees (typically 13.25% + $0.30) plus optional promoted listings.

Why do multi-channel sellers need different pricing strategies for each platform?

Because platform take-rates vary from 8% on self-fulfilled Shopify to 35%+ on Amazon FBA (with advertising and return allowances). Pricing products uniformly across all channels can result in severe margin compression on high-take platforms.

How should estimated customer return rates be factored into unit economics?

Customer returns require factoring in unsellable inventory loss, return shipping fees, and non-refundable payment processing fees into the per-unit net profit model.

Is this marketplace comparison tool official fee advice from Amazon or eBay?

No. All calculations are deterministic models based on your entered assumptions. Always verify current platform category fee schedules directly in Amazon Seller Central, Etsy Seller Handbook, or eBay Seller Center.

What should I do after comparing marketplace profit margins?

Use our Amazon FBA Profit Calculator for detailed cubic volume storage tier modeling and our Channel Pricing Calculator to set optimal retail prices across your direct-to-consumer store.