CAC Calculator: See What Every New Customer Really Costs
Add your ad spend, tool costs, and team time, and get your true customer acquisition cost in seconds, with a clear number you can act on.
Free with a Brainito account. No credit card required.
True Cost Visibility
Blend ad spend, software, and salaries into one CAC figure instead of guessing from ad platform numbers alone.
Compare Channels Fairly
Run the numbers per channel to spot where customers cost the least and shift budget with confidence.
Results You Can Share
Get a clean CAC number in seconds, ready to drop into a board deck, budget review, or growth model.
Frequently Asked Questions
How is customer acquisition cost calculated?
CAC divides your total sales and marketing spend by the number of new customers won in the same period. Include ad spend, tools, agency fees, and team time for a true figure rather than a flattering one.
What is a good CAC in 2026?
It depends on your customer lifetime value. A common rule is that lifetime value should be at least three times CAC. SaaS, ecommerce, and services all have different norms, so compare against your own margins first.
Is the CAC Calculator free to use?
Yes. The calculator is free after creating a Brainito account. You can run as many scenarios as you like and revisit your numbers whenever your spend or customer volume changes.
Know your real acquisition cost before you scale your ad budget
One account unlocks cac calculator plus 340+ marketing tools, weekly audits, and your action plan.