Business calculator

CPM Calculator for Ad Costs

Calculate advertising CPM, CPC, and click-through rate from spend, impressions, and clicks.

FormulaCPM = spend / impressions x 1000; CPC = spend / clicks; CTR = clicks / impressions

Formula

Ad metrics

CPM = spend / impressions x 1000; CPC = spend / clicks; CTR = clicks / impressions

500 spend on 100,000 impressions has a CPM of 5.

FAQ6 common questions for this calculator.

FAQs

What does CPM mean?+

CPM is cost per thousand impressions, a common way to compare display and awareness media.

Can I use this for social ads?+

Yes. Enter the campaign spend, impressions, and clicks from the platform report.

How does the CPM Calculator calculate the result?+

For the CPM Calculator, it uses the Ad metrics: CPM = spend / impressions x 1000; CPC = spend / clicks; CTR = clicks / impressions. 500 spend on 100,000 impressions has a CPM of 5.

What information do I need to use the CPM Calculator?+

For the CPM Calculator, enter spend, impressions, and clicks. Keep the units consistent with the calculator fields and compare your setup with the worked example on the page.

How accurate is the CPM Calculator?+

CPM Calculator is accurate when the business inputs come from the same reporting period and definition. It applies the Ad metrics. Platform attribution windows, refunds, taxes, or overhead allocation can change the interpretation.

What should I check before using the CPM Calculator result?+

For the CPM Calculator, check spend, impressions, and clicks, measurement period, attribution window, revenue basis, costs, and rounding rules. Business metrics change meaning when inputs come from different systems or time ranges.

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Business guide

How to use the CPM Calculator

Calculate advertising CPM, CPC, and click-through rate from spend, impressions, and clicks. The page also explains the ad metrics and shows a practical example: 500 spend on 100,000 impressions has a CPM of 5.

  1. 1

    Enter your details

    Enter spend, impressions, and clicks, then complete any other fields shown in the calculator.

  2. 2

    Check the calculation

    Review the result alongside the ad metrics: CPM = spend / impressions x 1000; CPC = spend / clicks; CTR = clicks / impressions.

  3. 3

    Compare scenarios

    Change one or more inputs to see how they affect the CPM Calculator result before you use the estimate.