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CAC Calculator
Calculate how much it costs to acquire each new customer and understand if your marketing is sustainable.
Calculate CAC
What is CAC?
Customer Acquisition Cost (CAC) is the total cost of acquiring a new customer, including all marketing and sales expenses. It’s one of the most critical metrics for understanding marketing efficiency and business sustainability.
The Formulas
CAC = (Total Marketing + Sales Expenses) ÷ New
Customers Acquired
Example Calculations
E-commerce Retail
Marketing: $20,000
Customers: 400
CAC: $50
SaaS Business
Marketing + Sales: $200,000
Customers: 1,000
CAC: $200
CAC by Industry
SaaS: $200–$1,000+ (varies by segment)
E-commerce Retail: $30–$200
Finance/FinTech: $200–$500
Healthcare: $200–$1,000+
Education: $100–$500
CAC vs LTV: The Golden Ratio
The real power of CAC comes from comparing it to Customer Lifetime Value (LTV):
LTV:CAC Ratio = Lifetime Value ÷ CAC
3:1 = Healthy benchmark. Customers generate 3x their acquisition cost.
>3:1 = Under-investing. You could afford to spend more on acquisition.
<3:1 = Over-spending. Your acquisition costs are too high relative to customer value.
1:1 or worse = Unsustainable. You’re losing money on each customer.
Simple vs Fully Loaded CAC
Simple CAC: Direct ad spend only (Google, Facebook, etc.). Quick to calculate but incomplete.
Fully Loaded CAC: Includes salaries, tools, agencies, content production, and overhead. More accurate for decision-making.
For strategic decisions, always use fully loaded CAC.
Common Mistakes
Excluding salaries and overhead from the calculation
Counting leads instead of paying customers
Not tracking CAC by channel (some channels may be much more efficient)
Ignoring payback period (how long until CAC is recovered)
Improving Your CAC
Optimize conversion rates at every funnel stage
Focus on channels with lower CAC
Improve retention to increase LTV (making higher CAC acceptable)
Implement referral programs for lower-cost acquisitions
Invest in content and SEO for long-term organic acquisition
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