Free Tool

CAC Calculator

Calculate your Customer Acquisition Cost and understand exactly how much you spend to win each new customer. Optimize your marketing ROI.

✓100% Free✓No Signup Required✓Instant Results✓Channel Breakdown

Calculate Your CAC

If provided, we will estimate your cost per lead.

Understanding CAC

Formula

CAC = (Marketing Spend + Sales Spend) / New Customers

Tips to Reduce CAC

  • ✓Invest in organic channels like SEO and content marketing for compounding returns.
  • ✓Optimize your conversion funnel. Small improvements at each step multiply.
  • ✓Use referral programs to turn happy customers into a free acquisition channel.
  • ✓Target higher-intent keywords and audiences to improve conversion rates.
  • ✓Shorten your sales cycle with better qualification and self-serve options.
  • ✓Track CAC by channel so you can double down on what works and cut what does not.

The average SaaS CAC payback period is 5-12 months.

Aim for an LTV:CAC ratio of at least 3:1 for a healthy business.

Find Low-CAC Business Ideas

Browse validated business ideas with built-in organic demand, backed by real Reddit pain points and search volume data.

Get Started

CAC Calculator: Know Your Customer Acquisition Cost

Customer Acquisition Cost is one of the most critical metrics for any SaaS business or startup. It tells you exactly how much you spend to win a single new customer, and when combined with your LTV (lifetime value), it reveals whether your business model is sustainable.

This free CAC calculator breaks down your acquisition cost into marketing and sales components. This separation matters because it helps you understand which channel is driving costs and where optimization will have the biggest impact.

For most early-stage SaaS companies, a healthy LTV:CAC ratio is 3:1 or higher. That means if it costs you $100 to acquire a customer, that customer should generate at least $300 in lifetime revenue. If your ratio is below 3:1, you are likely spending too much to acquire customers relative to what they are worth.

The best founders track CAC by channel, not just in aggregate. Your Google Ads CAC might be $200 while your organic search CAC is $30. By understanding these differences, you can reallocate budget toward your most efficient channels and reduce your blended CAC over time.