Blended Customer Acquisition Cost Calculator
Blended CAC averages acquisition spend across channels against the combined count of new customers over a matching attribution period.
How to use this calculator
- Enter spend and attributed new customers for up to three channels.
- Confirm that all inputs use the stated units and the same population, period or scope.
- Change one assumption at a time when comparing scenarios.
Formula used by the blended customer acquisition cost calculator
Blended CAC = total channel spend ÷ total new customers
- Blended CAC = total channel spend ÷ total new customers
- It does not reveal channel-level incrementality and can hide large differences between channels.
- Inputs are validated against required ranges and outputs are rounded for readability.
Worked examples
Worked example
Spend 1,200, 800 and 300 attracts 40, 50 and 10 new customers.
Blended CAC is 23 per new customer.
Blended CAC is 23 per new customer.
Understanding the result
Blended CAC averages acquisition spend across channels against the combined count of new customers over a matching attribution period.
It does not reveal channel-level incrementality and can hide large differences between channels.
Important notes
It does not reveal channel-level incrementality and can hide large differences between channels.
Use the result as a calculation aid for the inputs supplied; confirm critical specifications independently.
Frequently asked questions
Is blended CAC better than channel CAC?
They answer different questions; blended CAC is a portfolio average, while channel CAC is channel-specific.
Does this include customer lifetime value?
No; it estimates acquisition cost only.
How do I use this calculator?
Enter spend and attributed new customers for up to three channels.
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Related explanations
Learn the method behind the number or compare the terminology before using the calculator.
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This page provides a calculation tool plus explanatory information so you can understand what the result means and when the underlying method may not fit your situation.