CPA Calculator

Summary

Enter your ad spend and conversions to calculate CPA, ROAS, and break-even revenue per conversion.

How it works

1. Enter your total ad spend for the campaign period.
2. Enter the number of conversions (purchases, sign-ups, leads, etc.).
3. Optionally enter total revenue generated to calculate ROAS.
4. Optionally enter your target CPA to see how many conversions you need.
5. Results update instantly — CPA, ROAS, break-even, and efficiency rating.

Use cases

• Evaluate Google Ads or Meta Ads campaign efficiency.
• Set CPA targets before launching a paid campaign.
• Compare CPA across multiple ad sets or channels.
• Calculate break-even revenue needed per conversion.
• Report campaign ROI to clients or stakeholders.
• Determine budget adjustments to hit a target CPA.
• Audit historical campaigns for profitability.
• Benchmark e-commerce ad performance against industry norms.

Frequently Asked Questions