CPM Calculator CPM Fill in the form to Calculate your Cpm. Total cost of a campaign To find the cost of an online campaign, enter: CPM: (cost per 1,000 impressions) Number of impressions Cost per 1,000 impressions (CPM) Cost per 1,000 impressions (CPM) Total cost of campaign Number of impressions Number of impressions To find the total number of impressions you can get for your budget, enter: Please keep one of the fields empty so we can solve it!