CPM (Cost Per Thousand Impressions

CPM (Cost Per Mille) is the benchmark media pricing metric used in television, radio, digital display, and social media advertising to evaluate impression delivery costs.

To use the CPM (Cost Per Thousand Impressions) Calculator, enter your Parameter to Calculate, Total Ad Campaign Cost, Total Ad Impressions and other values. The calculator instantly computes Cost Per Mille (CPM), Total Ad Campaign Cost and more. Results update in real time as you change any input — no submit button needed.

How to Use This Calculator

Enter your Parameter to Calculate — choose from Calculate CPM () from Cost and Impressions, Calculate Total Cost () from CPM and Impressions, Calculate Impressions from Cost and CPM, Total Ad Campaign Cost (e.g. 1500 in ), Total Ad Impressions (e.g. 300000 in impressions), and Target CPM Rate (e.g. 5.00 in /1k impressions). Results update instantly as you type — adjust any value to compare scenarios.

The Formula

CPM () = (Total Ad Cost ÷ Total Impressions) × 1,000

Total Cost () = (Total Impressions ÷ 1,000) × CPM Rate

Impressions = (Total Ad Cost ÷ CPM Rate) × 1,000

Worked Example

1,500 total ad cost delivering 300,000 impressions:

Calculated CPM = 1,000 = 5.00 per 1,000 impressions (0.005 per single impression).

Understanding Your Result

Marketing metrics are most useful as trends over time rather than isolated snapshots. Benchmark your result against your own historical performance first, then against industry averages. Attribution models (last-click vs. multi-touch) can produce dramatically different channel ROI figures — ensure consistent attribution methodology before making channel budget decisions. Statistical significance requires sufficient sample size: most A/B test decisions need a minimum of 1,000 conversions per variant for reliable results.