Cost Per Impression (CPI) Calculator

What is Cost Per Impression (CPI)?

Cost Per Impression (CPI) is a digital advertising metric that measures how much you pay for each individual ad impression. Unlike CPM which measures cost per thousand impressions, CPI shows the exact cost for a single view of your ad.

How to Calculate Cost Per Impression

The formula for calculating Cost Per Impression is:

When to Use CPI

• When you need granular cost analysis at the individual impression level
• For comparing very different campaign sizes
• When optimizing small-scale advertising efforts
• For precise budget allocation across multiple channels

Tips for Optimizing Your CPI

1. Improve ad relevance to your target audience
2. Test different ad formats and placements
3. Optimize your ad scheduling
4. Refine your targeting parameters
5. Monitor and adjust campaigns based on performance data

Frequently Asked Questions

What's the difference between CPI and CPM?

While CPI measures the cost per individual impression, CPM (Cost Per Mille) measures the cost per thousand impressions. CPM is more commonly used in the industry, but CPI can provide more precise measurements for certain analyses.

What is a good CPI rate?

A good CPI varies significantly by industry, platform, and campaign type. Generally, you want to keep your CPI as low as possible while maintaining ad effectiveness. Typical CPIs range from fractions of a cent to several cents per impression.

How can I reduce my CPI?

To reduce your CPI, focus on improving ad quality, targeting accuracy, and campaign timing. Regular testing and optimization of your ad creative and audience targeting can help lower costs while maintaining or improving performance.