Simple Google Adsense Calculator to estimate your google Adsense earnings based on page impressions, page CTR and cost per click. Page impression is what Google counts in your reports every time a user views a page displaying Google ads. It will count one-page view regardless of the number of ads displayed on that page. The page click through rate (CTR) is the number of ad clicks divided by the number of page views. Cost per Click (CPC) is the amount you earn each time a user clicks on your ad.