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CAC & LTV calculator

Enter five numbers and see your unit economics the way an investor reads them — CAC, lifetime value, the LTV:CAC ratio and how fast you recoup acquisition spend.

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LTV : CAC ratio Enter your numbers
Customer Acquisition Cost
Lifetime Value (margin-adj.)
Avg. customer lifetime
CAC payback
How it's calculated
  • CAC = spend ÷ new customers
  • Avg. lifetime = 1 ÷ monthly churn
  • LTV = revenue/customer × gross margin × lifetime
  • LTV:CAC = LTV ÷ CAC  (3:1+ healthy)
  • Payback = CAC ÷ monthly margin  (≤12 mo healthy)
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