How we calculate this
See methodology- Take your total marketing or sales spend for the period.
- Divide it by the number of new customers acquired in that same period.
- The result is your average cost to acquire one new customer.
Customer Acquisition Cost Calculator
Customer Acquisition Cost Calculator
Calculate customer acquisition cost from spend and new customers acquired.
Formula
CAC
Total marketing / sales spend รท New customers acquired Worked example
If you spend $5,000 and acquire 50 new customers, here is the result.
- Take total spend of $5,000.
- Divide by 50 new customers.
- CAC is $100.00 per customer.
Frequently Asked Questions
What counts as acquisition spend?
Use the marketing and sales costs you want to attribute to getting new customers in the same time period.
Why can new customers not be zero?
CAC divides spend by the number of customers acquired, so zero customers makes the result undefined.
Should I compare CAC to LTV?
Yes. CAC is more useful when you compare it to customer lifetime value.
Methodology and Trust Note
See full methodologyThese tools are designed to make the math visible, keep assumptions clear, and give you a practical planning result you can review quickly.
This calculator is for educational and planning purposes only. It does not replace professional financial, tax, accounting, or business advice.