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CPA Calculator for performance marketers

Your acquisition economics are only as reliable as your CPA signal. Calculate CPA with conversion and budget scenarios, no spreadsheet cleanup.

Total campaign spend in your currency
Total attributed acquisitions/conversions
Projected conversions at target efficiency
Required CPA to stay inside budget

Your Results

One CPA, one campaign, once. The question is which campaign to cut.

Duct reads your ads, analytics and revenue tools, answers that question, and proposes the change. You approve it.

Download Duct ↓

CPA tells you acquisition cost. It doesn't tell you which channels are improving margin.

Duct reads CPA beside click quality, close rate and revenue by campaign, says which campaigns to cut and which to scale, and waits for your yes.

How Duct works →
An insights session: asked where the ads budget is leaking, the agent costs every campaign against the CPA target, proposes a pause, two negatives and a budget raise, and writes the spend brief on the right
Ask where the budget leaks. Duct costs every campaign against your CPA target, proposes the pause, the negatives and the budget shift, and waits for your yes.