How this calculator works
CAC shows how much it costs to acquire one customer. It is one of the most important business metrics for SaaS, ecommerce, agencies, subscription businesses, and paid acquisition campaigns.
CAC = (marketing spend + sales spend) ÷ new customers
For a cleaner CAC calculation, include the marketing and sales costs directly tied to acquiring the customers in the same period.
How to use this calculator
- Enter realistic values that match your current situation.
- Press Calculate to refresh the estimate.
- Compare the main result with the supporting details in the result panel.
- Change one input at a time to see which variable affects the result most.
Planning note: Customer Acquisition Cost Calculator gives an educational estimate. It does not include every tax rule, fee, platform policy, market condition, or personal constraint, so use it as a quick planning reference rather than a final decision.
FAQ
What is CAC?
CAC means customer acquisition cost, or the cost to acquire one new customer.
What is a healthy CAC?
It depends on lifetime value. A common target is LTV at least three times CAC.
Should sales salaries be included?
Yes, if they are part of the customer acquisition process.
How do you lower CAC?
Improve conversion rates, reduce ad waste, increase referrals, or improve targeting.
Why compare CAC with LTV?
CAC alone does not show profitability. LTV tells whether customers are worth the acquisition cost.