The KDP ADS Profit Calculator is a Chrome extension designed for self-publishers on Amazon's Kindle Direct Publishing platform. With this extension, users can easily calculate their ads' profitability by inputting information such as book royalty, number of units sold, CPC, and ad spend. The extension provides outputs such as cost per sale, net book royalty, total net royalty, ROI, and landing page conversion rate. This tool can help self-publishers optimize their advertising campaigns and connect organic sales with advertising sales. Improve your self-publishing business with the KDP ADS Profit Calculator.