Paid acquisition economics · Free · No signup
Break-even ROAS & Max CAC Calculator
Turn order-level costs into an advertising ceiling. Estimate the maximum CAC/CPA you can pay before contribution profit reaches zero, plus the equivalent break-even ROAS and ACoS.
Find break-even ROAS and maximum acquisition cost
Model one order using your own product, fulfilment, fee and return assumptions. The remaining contribution is the theoretical ad-spend ceiling.
Break-even acquisition ceiling
Break-even ROAS
1.87x
- Max CAC / CPA at zero profit
- $26.69
- Break-even ACoS
- 53.4%
- Non-ad variable cost
- $23.30
What this calculator answers
Next decision
Connect the result to the rest of your unit economics.
Use the seller toolkit to model landed cost, returns, marketplace fees, inventory and contribution profit before scaling spend.
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Before vs after. One action. Real numbers.
Break-even ROAS & Max CAC Calculator
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Can the value land before the explanation?
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Vertical capture · 9:16
405×720 reference · 10s
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Transformation
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0–1 second · hook
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Enter a simple synthetic scenario into Break-even ROAS & Max CAC Calculator; keep only the inputs needed to understand the calculation.
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