Cost per Thousand (CPM) is a metric that calculates how much an advertiser pays for every 1,000 views or impressions of their ad. It’s widely used in digital advertising to assess the cost of reaching a large audience. Rather than paying for clicks or direct interactions, CPM highlights ad visibility, making it ideal for brand awareness campaigns. To calculate CPM, divide the total ad spend by the number of impressions, then multiply the result by 1,000. This metric helps advertisers understand the cost of exposure and optimize their budgets for maximum visibility, especially when the goal is to raise awareness rather than drive immediate actions like clicks or purchases.