Customer Acquisition Cost Calculator
Calculate your CAC, LTV:CAC ratio, and payback period. See if your customer acquisition is profitable with visual health indicators and spend breakdown.
What Is Customer Acquisition Cost (CAC)?
Customer Acquisition Cost (CAC) is the total amount spent on marketing and sales to acquire one new customer. It is calculated as (Total Marketing Spend + Total Sales Spend) / Number of New Customers. A lower CAC relative to customer lifetime value indicates a sustainable, profitable business model.
How to Use the CAC Calculator
Enter your total marketing spend (ads, content, tools, agency fees) and sales spend (salaries, commissions, CRM tools) for a specific period. Enter the number of new customers acquired during that same period. Optionally add your average Customer Lifetime Value (LTV) to see the LTV:CAC ratio, payback period, and business health indicator.
Why CAC Is the Most Important Growth Metric
CAC tells you whether your growth is sustainable. A business can grow fast while losing money on every customer — CAC reveals this problem. Combined with LTV, it shows whether each customer is worth acquiring. Investors, CFOs, and growth leaders use LTV:CAC ratio as the primary indicator of business health. A ratio below 1:1 means you are burning cash; 3:1 or above means you can scale confidently.
How to Reduce Your CAC Over Time
The most effective way to lower CAC is investing in owned channels — SEO, content marketing, email, and referral programs — that compound over time without increasing spend. Improve conversion rates at each funnel stage so more prospects become customers from the same spend. Segment your audience to focus budget on your most profitable customer profiles. Use retargeting to convert warm leads at lower cost than cold traffic.
Need Help Reducing Your CAC?
Our growth team specializes in building acquisition systems that lower CAC over time through SEO, content, and conversion optimization. Let us analyze your funnel.