CPM Calculator
Choose whether to calculate cost per thousand impressions, total campaign cost, or delivered impressions. The two entered values must cover the same campaign scope and reporting period. This page covers “calculate the cpm”.
How to use the CPM Calculator
Enter the value to calculate and any two of campaign cost, impressions, and CPM.
Review currency, whether impressions are served or viewable, platform fees, invalid traffic, and the reporting period.
Read solved campaign cost, impressions, and cost per 1,000 impressions.
Formula
CPM = campaign cost ÷ impressions × 1,000; campaign cost = impressions × CPM ÷ 1,000; impressions = campaign cost × 1,000 ÷ CPM.
Example
A $2,400 campaign delivering 600,000 impressions has CPM = $2,400 ÷ 600,000 × 1,000 = $4.00.
Assumptions and limitations
- All values refer to the same campaign scope and period; a positive cost cannot be paired with zero CPM, and the result does not measure conversions or incrementality.
- CPM Calculator treats the entered values as estimates and does not infer missing project, account, or personal details.
- Calculations retain working precision except where the cited method requires an intermediate rounding step; displayed values are then formatted separately. Source rules and dated rates must be rechecked when they change.
Sources
- Interactive Advertising Bureau: Digital Advertising GlossaryStandard digital-advertising terminology including impressions and CPM. Reviewed 2026-08-14.
- Google Ads Help: Cost-per-thousand impressions (CPM)Official formula, rate, or program guidance used by this calculator. Reviewed 2026-08-14.
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Frequently asked questions
How does the CPM Calculator work?
CPM = campaign cost ÷ impressions × 1,000; campaign cost = impressions × CPM ÷ 1,000; impressions = campaign cost × 1,000 ÷ CPM.
What information should I enter in the CPM Calculator?
Enter the value to calculate and any two of campaign cost, impressions, and CPM, then verify currency, whether impressions are served or viewable, platform fees, invalid traffic, and the reporting period.
What should I verify before using this CPM Calculator result?
All values refer to the same campaign scope and period; a positive cost cannot be paired with zero CPM, and the result does not measure conversions or incrementality.
Reviewed 2026-08-14 · solve-any-two-v2 · content-2026-08-14 · Trusty Calculator Editorial Team