Find total acquisition spend required for each new customer.
Tip: figures are local to your browser and are not uploaded.
The Customer Acquisition Cost Calculator reveals exactly how much your business spends to win each new paying customer. By combining your sales and marketing expenses against new customer volume, you gain a critical metric for budgeting, growth planning, and evaluating channel efficiency.
Customer acquisition cost, or CAC, is the total sales and marketing investment divided by the number of new customers acquired during a given period. It is one of the most important unit economics metrics for any business, from early-stage startups to established enterprises. A rising CAC can signal inefficient campaigns or market saturation, while a declining CAC suggests your growth engine is becoming more efficient. This free, browser-based calculator makes it easy to track this vital figure without spreadsheets or logins.
Enter your total sales costs, including salaries, commissions, and tools, followed by your total marketing spend for the same period. Then input the number of new customers acquired. Click Calculate and the tool instantly displays your CAC along with contextual insights. All data stays in your browser and is never uploaded. Run the calculation monthly or quarterly to track trends and identify which periods delivered the most cost-effective growth.