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Amazon ACoS Calculator

Calculate Amazon Advertising Cost of Sales (ACoS) and break-even ACoS by margin.

Amazon
Your ACoS
23.53%
Break-even ACoS: 35.0%
ROAS equivalent
4.25x
Profit (or loss) per dollar of ad spend
$0
ACoS < break-even = profitable acquisition. ACoS > break-even = losing money per sale (only worth it if customer LTV justifies).

About this tool

ACoS = ad spend / ad sales. Break-even ACoS = your gross margin %. If actual ACoS > break-even ACoS, you lose money on ads.

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