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Marketplace Fee Parity Price Calculator

Reviewed for 2026, updated September 8, 2026.

Works out what to list an item for on other marketplaces so you net the same payout as on your main one, for resellers keeping prices consistent across platforms with different fees.

Your numbers

Results update as you type.

Your estimate

Net payout on your main marketplace...
Matching price on marketplace 2...
Matching price on marketplace 3...
Net given up per sale if you keep one identical price...

Estimates only. Assumptions are listed below, and you can change every input.

Identical prices across marketplaces feel tidy, but different fee schedules mean the same sticker price pays you different amounts depending on where the item sells. Price everything to your lowest fee marketplace and every sale on a higher fee platform quietly earns less than you planned. Price to the highest and you are overcharging where fees are low.

This calculator starts from your list price and total fee on your main marketplace, computes the net payout, then solves for the price that produces the same net on two other marketplaces with their own percentage and fixed fees. It also shows how much net you give up per sale if you keep one identical price everywhere. Enter the combined rate each marketplace actually takes from you, including payment processing. The defaults are placeholders, not fee schedules.

How to use this tool

  1. Enter the price you list at on your main marketplace, plus the combined fee percentage and any fixed per-order fee it charges.
  2. Enter the fee percentage and fixed fee for a second marketplace, and the percentage for a third.
  3. Read the matching prices, round them to the endings you like, and note how much net you give up per sale if you keep one price everywhere.

What the math assumes

  • Assumes fees are a flat percentage of the sale price plus an optional fixed amount per order, with no tiers, caps, category exceptions, or promoted listing charges.
  • Shipping is left out because a shipping cost you absorb is the same whichever marketplace the item sells on, so it does not change the parity price.
  • Marketplace 3 is assumed to have no fixed per-order fee. If it does, enter it in the marketplace 2 slot.
  • Matching prices are exact to the cent. You will normally round them to a price ending you prefer, which shifts the net by a few cents.
  • Default percentages are placeholders, not a claim about any marketplace's current schedule. Check each fee page and enter the combined rate that applies to your category and seller level.

Frequently asked questions

Should I raise prices on high fee marketplaces or lower them on cheap ones?

The tool only tells you what equal net requires. Whether buyers on the higher fee platform will pay the higher price is a demand question, and many sellers accept a lower net there in exchange for volume. Use the parity price as a reference point, not a rule.

What about sales tax and buyer paid shipping?

Most marketplaces collect sales tax from the buyer and remit it themselves, so it does not change your net. Buyer paid shipping only matters if a marketplace charges its fee on the shipping amount too; if so, add an estimate of that to the percentage.

Can I use this for more than three marketplaces?

Yes. Keep your main marketplace fixed and swap the other two slots for each additional platform. The main net payout stays the same, so every result is comparable.

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More free tools from RelistSync

  • Cross-Listing Oversell Risk Calculator: Estimates how many double sales per month your delisting lag is likely to cause, and what they cost, for resellers who cross-list the same items on several marketplaces.
  • Cross-Listing Time Cost Calculator: Estimates the hours and dollars a reseller spends each month copying listings to extra marketplaces and delisting sold items by hand.

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