Adroicalc.com exists because too many indie authors run Amazon Ads, Facebook Ads, or BookBub promotions without ever knowing whether the campaign actually made money. We built this calculator to turn raw ad numbers — spend, clicks, conversions — into a clear answer: ACOS, ROAS, and real profitability, in plain terms.
This tool grew out of watching authors reinvest in ad campaigns based on vanity metrics like click-through rate alone, without connecting spend back to royalties earned. The math is the same math any performance marketer would use; we just packaged it for authors who didn't train as marketers.
It's built and maintained by Officina Systems, part of the IndieOwner family of free calculators for independent creators and small publishers. No account, no spreadsheet — enter your numbers and see where you stand.
Questions or feedback about this tool? Reach us at [email protected].