theINDIE|LAB

AD BREAK-EVEN CALCULATOR

Are your ads eating your lunch?

Tell us what a new reader is worth and how often clicks turn into readers. We’ll show the ceiling before the ad starts costing more than the reader is worth.

Ideally, use the value across the series — not just Book 1.

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I have no idea

Use our Reader Value Calculator first. If you only know Book 1 royalty, enter that; the result will be more conservative.

Calculate reader value →

If 5 of 100 clicks convert, enter 5%.

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I don't know this either

Try scenarios rather than treating a guess as fact. Start with 5% only to see how sensitive the result is.

Leave blank if you only want the break-even number.

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NEXT USEFUL NUMBER

Want to see whether the whole month made money?

Check book profit →