Ad Performance Metrics
Cost Per Impression Calculator
Calculate the exact cost of every single ad view
Cost Per Impression Calculator
How it works: Divides your total campaign cost by the total number of impressions to find the cost of a single view.
What is CPI?
Cost Per Impression (CPI) measures exactly how much you pay for a single view of your ad. Unlike CPM which groups costs by thousands, CPI gives you the granular cost of one individual impression, making it useful for precise budget tracking and small-scale campaigns.
CPI Formula
The formula is simple:
CPI = Total Cost / Total ImpressionsHow to Optimize Your CPI
Refine your target audience to reduce wasted impressions
A/B test ad creatives to improve engagement rates
Adjust bidding strategies based on time of day
Focus on high-performing platforms for your niche
Monitor frequency to avoid ad fatigue
Frequently Asked Questions
CPI vs CPM: What's the difference?
CPI is the cost for ONE impression, while CPM is the cost for ONE THOUSAND impressions. CPI = CPM / 1000. Use CPI for granular analysis and CPM for general campaign budgeting.
What is a good CPI?
A "good" CPI depends heavily on your industry. Generally, anything under $0.01 per impression is considered efficient for broad reach campaigns, while highly targeted B2B campaigns might have higher CPIs.
Does a lower CPI mean better performance?
Not always. A very low CPI might mean you're getting cheap impressions from irrelevant audiences. It's important to balance low costs with conversion metrics like CTR and ROAS.
Related Marketing Tools
Supercharge your marketing strategy with our suite of powerful, free calculators designed for modern advertisers.
CPM Calculator
Calculate Cost Per Thousand Impressions for your advertising campaigns
CPM to CPC Calculator
Convert CPM to CPC and compare pricing models
Influencer CPM Calculator
Calculate CPM and engagement metrics for influencer marketing
TikTok Ads Calculator
Calculate CPM, CPC, CTR and more for TikTok advertising
UTM Link Builder
Generate Google Analytics tracking URLs with ease
Break-Even ROAS Calculator
Calculate minimum ROAS for Shopify profitability
CAC Calculator
Calculate Customer Acquisition Cost
LTV to CAC Calculator
Measure business health with LTV:CAC ratio
Engagement Rate Calculator
Calculate engagement for Instagram & TikTok
YouTube Money Calculator
Estimate your YouTube AdSense earnings