Set ad bids your margin can afford
Set ad bids your margin can afford — one goal, 2 tools, no signup needed to look around.
Do it in these steps
- 1
Step 1
Marketplace Profit CalculatorBreak down referral, payment, fulfilment and ad fees per marketplace, then get net profit, margin and your break-even price.
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When step 1 finishes, paste its result into Ad Break-Even Calculator — that is why this is a two-step job.
- 2
Step 2
Ad Break-Even CalculatorWork out what your ad spend can afford: break-even ACOS, the ACOS your target margin needs, the highest CPC a click can cost and break-even ROAS.
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Start with step 1 right here
Marketplace Profit Calculator
Break down referral, payment, fulfilment and ad fees per marketplace, then get net profit, margin and your break-even price.
Variable fees are charged on the selling price; fixed fees (fulfilment, storage, payment fixed fee) are not. ROI uses cost plus shipping as the denominator, margin uses the price.
Amazon referral fees were read from the official pricing page on 2026-09-18, including the tiered categories. Other marketplaces are example values until they are verified the same way.
Estimates only. Marketplaces change fees and your account may have different rates or additional charges — always reconcile against your own statements.
The whole calculation runs in your browser; nothing is sent to us.
How it works
This utility runs locally in your browser for privacy and speed.
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Unlimited local toolsThis run costs 1 credit(s) and is saved to your history automatically.
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Frequently asked questions
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- You can browse and read everything without an account. Signing up takes a minute and gives you 3 free credits to run the tools.
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- Tools marked as browser-local run entirely on your device — nothing is uploaded. AI tools send only the text or image you submit for that single run.