Cost Per Impression Calculator
Calculate the cost per impression (CPI) for your advertising campaigns. Enter total spend and impressions to get the cost per thousand impressions (CPM) and cost per single impression.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to use the Cost Per Impression Calculator
- Enter Total Spend ($): Input the total amount spent on the campaign (e.g., 5000). Must be a positive number.
- Enter Impressions: Input the total number of ad impressions (e.g., 100000). Must be greater than zero.
- Click "Calculate": The calculator will instantly compute two key metrics:
- Cost per Mille (CPM): Cost per 1,000 impressions. Formula: (Total Spend ÷ Impressions) × 1000.
- Cost per Impression (CPI): Cost per single impression. Formula: Total Spend ÷ Impressions.
- Review Results: CPM is shown in dollars with 2 decimal places; CPI is shown with 4 decimal places for precision.
Tip: Use this calculator to compare campaign efficiency—lower CPM or CPI indicates better cost performance. Ensure both inputs are in the same currency (USD) and impressions are whole numbers.
Previous Results
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Frequently Asked Questions
Cost Per Impression (CPI) is the amount an advertiser pays for each individual ad impression. It is calculated by dividing total spend by the number of impressions.
CPM stands for Cost Per Mille, meaning cost per thousand impressions. It is a common metric in advertising to compare the cost efficiency of different campaigns.
A lower CPM or CPI indicates a more cost-effective campaign. Compare your CPM against industry benchmarks to gauge performance.
