CPM
Calculator.
CPM = Cost Per Mille (per 1,000 impressions). Fill any two of CPM, Cost, or Impressions and the third is computed live.
CPM formula
CPM = Cost / Impressions × 1000 Cost = CPM × Impressions / 1000 Impressions = Cost / CPM × 1000
Used widely in display, video, and out-of-home advertising as the standard cost metric.
Frequently asked questions
What does CPM Calculator do?
Cost-per-mille for ad spend at any impression volume. The whole thing runs in your browser tab, so it is ready the moment the page finishes loading.
Is CPM Calculator free to use?
Yes. CPM Calculator is completely free on ToolMunch — no trial, no premium tier holding back the main feature, and no daily or hourly cap on how many times you can use it.
Do I need to create an account or sign up?
No. There is no account, no email address, and no login. Open CPM Calculator, do the job, and take the result — nothing is gated behind a signup form.
Are the numbers I enter sent to a server?
No. CPM Calculator runs entirely inside your browser tab, so what you type never leaves your own device. Nothing is uploaded, which means there is no copy of it on a server to worry about.
Does CPM Calculator work on Mac, Windows, and phones?
Yes. CPM Calculator runs in any modern web browser on Windows, macOS, Linux, Chromebook, Android, and iOS. There is nothing to download or install.
Can I use it as many times as I want?
Yes. There is no queue, no per-hour quota, and no counter that runs out — run CPM Calculator as often as the work needs.