What is Cost Per Acquisition (CPA)?
CPA measures the average cost to gain a new customer or lead through advertising, calculated by dividing total ad spend by the number of conversions.
Table of Contents
Full Definition
CPA reflects the efficiency of an advertising campaign in generating valuable actions such as purchases, signups, or leads.
Lower CPA indicates better cost-effectiveness, but must be balanced with quality and lifetime value to ensure profitability.
Tracking CPA guides budget allocation and campaign optimization.
Examples
Total ad spend divided by conversions
Key metric for ROI analysis
Guides budget decisions
Benefits
Measures cost-effectiveness
Supports campaign optimization
Helps forecast marketing spend
Common Mistakes
Can fluctuate by market and season
May not reflect customer quality
Requires accurate conversion tracking
Conclusion
CPA is a critical KPI for managing advertising profitability.