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CAC Simulator

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By Growth Team
Dec 29, 2025

The CAC Simulator helps you answer the most expensive question in your startup: "How much does it cost to buy a customer?"

Inputs

To get a precise calculation, Calanar pulls data from your connected Ad Accounts, but allows you to adjust the following variables manually:

  1. Marketing Spend: Total ad spend + Agency fees + Marketing salaries.
  2. Sales Spend: Sales team salaries + Commissions + Tools (CRM).
  3. New Customers: Total new paying logos acquired in the period.

Blended vs. Paid CAC

The simulator outputs two distinct metrics:

  • Paid CAC: Total Ad Spend / Customers from Paid Channels.
    • Use this to measure the performance of your Facebook/Google campaigns.
  • Blended CAC: Total S&M Spend / Total New Customers.
    • Use this to measure the overall health of your business (including viral/organic growth).

The LTV:CAC Ratio

Once your CAC is calculated, the simulator compares it to your LTV (Lifetime Value).

  • 3:1 Ratio: The industry standard. You make $3 for every $1 spent.
  • < 1:1 Ratio: You are losing money on every customer. Stop spending immediately.
  • > 5:1 Ratio: You are under-spending. You can afford to be more aggressive to grow faster.

💡 Pro Tip

Payback Period: Toggle the view to "Time" to see how many months it takes to recover your CAC. Ideally, this should be < 12 months for SMBs and < 18 months for Enterprise.

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  • Inputs
  • Blended vs. Paid CAC
  • The LTV:CAC Ratio
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