Marketplace Profit Calculator

• Estimates depend on the selected marketplace and category and on the verified fee rules available for that combination.
• Some marketplace fees are tiered or conditional. Where tiers are verified (for example Amazon Apparel, Beauty, Grocery, and Electronics), the calculator applies the tier matching your selling price.
• Shopify results use the Basic plan online card rate (2.9% + $0.30). Other Shopify plans have different rates, and Shopify subscription-plan costs (for example the $39/month Basic plan fee) are not included.
• Etsy results use the US payment-processing rate (3% + $0.25); rates vary by country. Etsy Offsite Ads fees (12% or 15%, conditional) are not included. The $0.20 listing fee is charged per sale here, though it actually covers a 4-month listing period.
• Amazon Books results exclude the $1.80 per-item closing fee for Media items.
• Amazon storage uses the January–September standard-size rate; the Q4 peak rate is not modeled.
• Walmart estimates cover only categories with a verified Walmart rate (Electronics, Home & Kitchen, Apparel) and the verified WFS Small ≤ 1 lb fulfillment fee. Unsupported combinations are flagged above instead of being estimated.
• eBay is not currently supported by this calculator. See the Marketplace Fee Database for verified eBay fees.
• Return-cost and package-size (cubic-foot) figures are rough modeling assumptions, not verified marketplace fee data.
• Results are estimates. Always confirm current applicable fees in the official marketplace sources linked in the Fee Database.

Fee data last reviewed: June–October 2026, varying by marketplace and fee. Per-fee verification dates are shown in the Fee Database.