What is CPM (Cost Per Mille)?

CPM, or Cost Per Mille, is the cost per thousand ad impressions. 'Mille' is Latin for thousand. It is the standard unit for comparing the cost of reaching an audience across platforms, formats, and campaigns.

How do you calculate CPM?

Divide your total ad spend by the number of impressions, then multiply by 1,000. The formula is CPM = (Total Ad Spend / Total Impressions) x 1,000. For example, a $400 campaign delivering 100,000 impressions has a CPM of $4.00.

Is this CPM calculator free to use?

Yes. The CPM calculator is completely free, requires no sign-up, and runs entirely in your browser. The values you enter are never sent to or stored on our servers.

Privacy Policy

Last updated: June 18, 2026

This Privacy Policy explains how cpmcalculator.net ("we", "us", or "our") handles information when you use our website and the free CPM calculator we provide. We have designed this site to collect as little personal data as possible.

The calculator runs in your browser

All calculations on this site are performed locally in your web browser. The numbers you enter — impressions, CPM, or total cost — are never sent to, stored on, or processed by our servers. When you close or refresh the page, those values are gone.

Information we collect

We do not ask you to create an account or submit personal information to use the calculator. The limited information we do collect falls into two categories:

Analytics data. We use a privacy-focused analytics tool to understand aggregate, anonymous usage — such as page views, approximate region, referring site, and device type. This data is not tied to your identity and is used only to improve the site.
Technical data. Like most websites, our hosting and content-delivery providers may automatically log standard request information (such as IP address and browser type) for security and performance purposes.

How we use information

We use the limited information described above to:

Operate, maintain, and secure the website
Understand which content and features are useful
Diagnose technical problems and improve performance

We do not sell your personal information, and we do not use the values you enter into the calculator for any purpose.

Cookies

We aim to keep cookie usage minimal. Our analytics provider is designed to measure traffic without using cookies that track you across other websites. Any essential cookies are used only to deliver the site reliably. You can control or block cookies through your browser settings.

Third-party services

We rely on third-party providers for hosting, content delivery, and analytics. These providers process data on our behalf and have their own privacy practices. We load some assets (such as fonts and scripts) from external content-delivery networks to make the site load quickly.

Your rights

Depending on where you live, you may have rights to access, correct, or delete personal data we hold about you, or to object to certain processing. Because we collect so little personal data, in most cases we will have nothing tied to your identity. You can exercise applicable rights or ask questions using the contact details below.

Children's privacy

This site is intended for a general, professional audience and is not directed at children. We do not knowingly collect personal information from children.

Changes to this policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date at the top of this page. Continued use of the site after changes take effect constitutes acceptance of the updated policy.

Contact

If you have questions about this Privacy Policy or how we handle data, please contact us at [email protected].