Marketplace Commission Calculator
Compare what you keep on different sales channels. Enter monthly volume, price, unit cost and a channel's commission rate, then repeat with another channel's rate.
Who it's for: Sellers deciding whether to add or move to Shopify, Amazon, Faire or another marketplace.
How to use it
- Enter monthly units, price and unit cost.
- Enter the channel's total fee as a percentage.
- Note the result, then change the rate to compare another channel.
Assumptions
Revenue = units × price. Fees = revenue × commission rate. Net profit = revenue − cost − fees. The 10% default is a placeholder, not any platform's real rate. Fixed per-order fees (such as Etsy's $0.25 processing or $0.20 listing fee) and subscriptions are not included; add them as an extra percentage for a closer estimate.
Results are estimates for planning, not tax, legal or financial advice. All figures are editable.
Related tools
Go further
Want this in a spreadsheet you can keep? The Profit & Pricing Calculator (Pricing & Margin Calculator, Break-even ROAS, COGS, Discounts, Google Sheets Excel) is a ready-made template.
Get the Profit & Pricing Calculator on Etsy (opens in a new tab)