CAC Calculator

Calculate customer acquisition cost from sales and marketing spend and new customers, with the CAC formula and a worked example.

How do you calculate customer acquisition cost?

Customer acquisition cost (CAC) is the average sales and marketing cost required to acquire one new customer in a chosen period.

Formula: (sales costs + marketing costs) ÷ new customers acquired.

Example: $12,000 of eligible spend and 150 new customers gives a CAC of $80.

Use consistent cost and customer periods, then estimate recovery time with the CAC Payback Period Calculator.

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