Customer Acquisition Cost Calculator
Measure what it costs to win one new customer. Add up marketing spend, sales spend – salaries, commissions and tools – and any other acquisition costs for a period, divide by the customers won in the same period, and see the blended CAC as well as marketing and sales CAC separately. Add lifetime value and monthly gross profit per customer to see whether acquisition pays off and how quickly.
- Runs in your browser
- No sign-up
- Free to use
For the payback period.
How to use Customer Acquisition Cost Calculator
- Enter marketing and sales spend for a period.
- Enter the new customers won in that period.
- Optionally add CLV and monthly profit per customer.
- Read CAC, the ratio and payback.
Customer Acquisition Cost Calculator features
Blended CAC
All acquisition costs.
Marketing and sales CAC
Separately.
CLV : CAC
Is acquisition profitable?
Payback
In months.
Formula shown
Every result explains how it was calculated.
Any currency
Choose from 30+ currencies; amounts are formatted for it.
When to use Customer Acquisition Cost Calculator
- Monthly marketing reports.
- Comparing channels or campaigns.
- Setting acquisition budgets.
- SaaS and ecommerce unit economics.
Customer Acquisition Cost Calculator FAQ
Which costs belong in CAC?
Everything spent to win new customers: ads, content, events, tools, agency fees and the share of sales and marketing salaries spent on acquisition.
Should I include existing customers?
No – count only new customers, and leave out costs aimed at retention or upselling.
What period should I use?
A month or a quarter. With long sales cycles, compare spend with customers won one cycle later.
What is a good CAC?
It depends on what a customer is worth. Compare CAC with CLV rather than with other companies.
Getting CAC right
CAC is easy to understate: leaving out salaries or tools makes acquisition look cheaper than it is. Blended CAC including all costs is the honest number for planning; channel CAC helps decide where to spend the next unit of budget.
Watch the trend: CAC usually rises as you exhaust the cheapest channels, which is a signal to improve conversion or retention.
Splitting CAC into marketing and sales parts shows where the money goes. A low marketing CAC with a high sales CAC, for example, suggests leads are cheap to attract but slow or expensive to close, which points at qualification and sales process rather than ad spend.
Use consistent definitions over time: count customers and revenue the same way every month, separate one-off fees from recurring revenue, and compare cohorts rather than mixing old and new customers.