Free · no registration

Book Advertising Calculator

Find the unsuccessful ACoS and CPC and evaluate the campaign result after the advertising. The calculation uses the author's royalties, not the entire Amazon output.

Your Advertising Impressions

Do you know the royalty? count it for Printed Books or eBookAll fields are your assumptions, not the statistics of competitors.

Frontiers and results of the campaign

Break-even ACoS

29.22%

Other and other expenses.

Maximum CPC

$0.44

For the introduced conversion; for zero remains from sale.

The cost of the purchaser

$3.00

The remainder of advertising sales

$1.38

Royalties minus customer acquisition cost; may be negative.

The formula

Conversion = introduced percentage ÷ 100. Connection of the buyer = CPC ÷ conversion. Maximum CPC = royalty x conversion.

Break-even ACoS = royalties ÷ price of sale without tax × 100%. ACoS = budget ÷ advertising output × 100%; ROAS Advertising of budget.

Sales = budget ÷ CPC × conversion. The remains = sales × royalty − budget − other monthly expenses. time of cumulative = one-time expenses ÷ additional monthly remains, rounded up.

The model is one sale of one sample per conversion. Organic sales, several books in order and reading KU are not included. The period of advertising attribution must be the same for clicks and orders.

Is there demand? is there demand?

Check the book keywords, competitors and niche in Indie Book Atlas.

Analyze niche

Scenary calculation according to the entered data. It does not take into account the author's taxes, payments, return and rate differences. The remaining amounts check in your own KDP and Amazon Ads.

Formulas are prepared 21.10.2026Official information on Amazon: The royalty of printed bookseBook royalties

    base44
    Edit with Base44