CPM Calculator

About CPM Calculator

CPM Calculator is a free planning tool for advertisers and media buyers who need to work out cost per thousand impressions quickly. It is aimed at people building YouTube, paid social and awareness campaigns, as well as anyone doing top-of-funnel media planning who wants a fast answer without opening a spreadsheet.

The tool solves any one of three values from the other two: CPM, total cost, or impressions. Results update as soon as both inputs are filled, with no calculate button. Each result comes with a plain-English summary, a currency selector, and reference ranges for industries and markets so the number can be sense-checked against typical pricing.

What sets it apart is the focus on sharing and comparison. Scenarios can be saved, and the share link keeps the assumptions in the URL so a teammate can open the same setup. A compare mode also shows how much extra spend a higher CPM creates for a fixed reach target.