How to use this calculator
If $5,000 produces 250 customers, CAC is $20. Revenue per customer helps you see whether acquisition can pay back.
Advertising
CAC / CPA Calculator
Use this to understand how much each lead, conversion, or customer costs from a campaign.
Formula
CAC = total acquisition cost / customers.
What the result means
This page explains the arithmetic behind the estimate so you can adjust assumptions before using the number in planning.
Read the guide
Learn the difference between CAC and CPA, how to calculate acquisition cost, and how to avoid misleading campaign math.
CAC vs CPA: How to Understand Customer Acquisition Cost ClearlyCommon questions
Is CPA always the same as CAC?
They are often used similarly, but CAC usually refers to acquired customers while CPA can refer to any conversion.
Should salaries be included?
For a full CAC model, include team, tools, and creative costs. For campaign CPA, use media spend only.
Is this financial advice?
No. It is a simple business math estimate.