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Calculate the ACOS required to make your Amazon Ads profitable
Amazon ACOS Calculator for KDP Authors
Amazon Ads can be a powerful tool for promoting books, but many KDP authors struggle to understand whether their advertising campaigns are profitable.
One of the most important metrics in Amazon advertising is ACOS (Advertising Cost of Sales).
ACOS shows the percentage of advertising spend compared to the revenue generated from ads.
Understanding this metric allows authors to evaluate the efficiency of their advertising campaigns and determine whether their ads are profitable.
What is Amazon Ads ACOS?
ACOS stands for Advertising Cost of Sales.
It measures how much you spend on advertising compared to the revenue generated from those ads.
Example:
If you spend $10 on ads and generate $20 in sales, your ACOS is:
ACOS = 50%
A lower ACOS means your advertising campaign is more efficient.
However, for KDP authors the most important number is the break-
Many authors increase their Amazon Ads budget without calculating their real profitability.
If the ACOS is higher than the royalty percentage of the book, the campaign is losing money.
For example:
Book price: $14.99
Royalty per sale: $4.50
Break-
4.50 ÷ 14.99 = 30%
If your ACOS is above 30%, you are losing money.
If your ACOS is below 30%, your campaign is profitable.
Understanding this metric helps authors manage advertising budgets more effectively.
Amazon ACOS Calculator
To simplify this process, you can use a calculator to determine the ACOS required to make your Amazon Ads profitable.
The calculator allows you to enter:
• Book price
• Royalty per sale
• Advertising cost
and instantly see whether your campaign is profitable.
Try the Amazon Ads Break-
If you want to calculate the exact break-
This tool helps KDP authors understand:
• the ACOS required to break even
• whether a campaign is profitable
• when to scale advertising budgets
Use the calculator to make smarter decisions when managing Amazon Ads campaigns.
Try the Amazon Ads Break Even Calculator