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Amazon Ads ROI Calculator

Calculate your ACOS (Advertising Cost of Sales) and ROAS (Return on Ad Spend) to ensure your campaigns are profitable.

Campaign Data

Profit Trick: Your ACOS should generally be lower than your Profit Margin (from the Print Profit tool) to be truly profitable.

ACOS (Ad Cost of Sales)

%
ROAS (Return)
x
Multiplier
Gross Ad Profit
$
Before COGS

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Frequently Asked Questions

What is a good ACOS?

A 'good' ACOS depends on your goals. For profitability, it should be lower than your profit margin. For launching a new book (aggression), you might accept an ACOS of 80-100% just to gain rank.

What is ROAS?

Return on Ad Spend. A ROAS of 3.0 means for every $1 you spend on ads, you get $3 in revenue. A ROAS above 2.5 is generally considered healthy for books.

Does this include organic sales?

No, this calculator only looks at ad-attributed sales. Your ads often boost organic sales too (the 'halo effect'), so your true ROI might be higher.

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