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SaaS

CAC Calculator

Calculate Customer Acquisition Cost — the total sales and marketing cost to acquire one new customer.

$

Include salaries, ads, tools, and all acquisition costs

Your CAC

CAC

$150.00

Each new customer costs $150.00 to acquire on average.

$12,000 ÷ 80 customers

Total S&M Spend

$12,000

New Customers

80

Want to understand what this number means for your overall growth?

Run a free Growth Audit to review your ROAS, CAC, LTV, margin, and ad spend together.

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Formula

CAC = Sales & Marketing Cost ÷ New Customers Acquired
S&M CostTotal sales and marketing spend in the period
New CustomersNumber of new paying customers acquired

Example Calculation

You spent $12,000 on sales and marketing and acquired 80 new customers.

CAC = $12,000 ÷ 80 = $150.00

Your customer acquisition cost is $150. Compare against LTV to assess unit economics.

How to Interpret CAC

CAC is most meaningful compared to LTV. A healthy SaaS business typically targets an LTV:CAC ratio of 3:1 or higher.

Also track CAC payback period: CAC ÷ Monthly Gross Profit per Customer. Under 12 months is generally healthy for SaaS.

Common Mistakes

  • Including only ad spend, excluding salaries and tools.
  • Mixing new customer CAC with expansion revenue.
  • Using blended CAC without separating paid vs organic.
  • Not accounting for sales cycle lag.

Frequently Asked Questions

All costs directly related to acquiring customers: paid advertising, sales and marketing salaries and commissions, marketing software and tools, events and trade shows, and content production costs.

Disclaimer: Results produced by this calculator are estimates for informational purposes only and do not constitute financial, business, or professional advice. Actual results will vary based on your specific business conditions, market factors, and other variables. Always consult qualified professionals before making business decisions.