CAC Calculator
Calculate your Customer Acquisition Cost — how much you spend on sales and marketing to acquire each new customer. Essential for SaaS, e-commerce, and subscription businesses.
What Is Customer Acquisition Cost?
Customer Acquisition Cost (CAC) measures the total cost of acquiring a single new customer. It includes all sales and marketing expenses: advertising, team salaries, commissions, CRM tools, content creation, and event costs. CAC tells you how efficiently your business converts spending into paying customers. Tracking CAC by channel reveals which acquisition methods deliver the best return and where to allocate your budget.
CAC Formula
CAC = (Marketing Spend + Sales Spend) / New Customers Acquired
LTV:CAC Ratio = Customer Lifetime Value / CAC
CAC Payback = CAC / Monthly Revenue Per Customer
CAC Payback Period
CAC payback measures how many months it takes to recoup the cost of acquiring a customer through their subscription revenue. A payback period under 12 months is strong for SaaS businesses. Longer payback periods tie up capital and increase risk if customers churn before you break even. Investors closely watch this metric because it directly affects cash flow and the amount of funding needed to sustain growth.
How to Reduce CAC
Lower CAC by improving conversion rates at each stage of the funnel, optimizing ad targeting to reach higher-intent audiences, and investing in organic channels like SEO and referrals. Streamline the sales process by reducing demos-to-close time and automating lead qualification. Content marketing and word-of-mouth programs have lower marginal costs than paid acquisition. Focus on the channels with the lowest CAC and highest customer quality rather than spreading budget across every platform.