Free instant calculator
Marketing ROI / CAC-LTV Calculator
Enter your numbers and get your CAC, LTV, LTV:CAC ratio, and payback period instantly — plus a ranked look at which lever moves the needle most for your business.
CAC
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Cost per new customer
LTV
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Lifetime value per customer
LTV:CAC ratio
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Return per acquisition dollar
Payback period
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Months to recoup CAC
Where to focus first
Each figure shows the effect on your LTV:CAC ratio from a uniform 10% improvement to that lever alone, with every other input held constant. Spend efficiency and churn sit on the cost/retention side of the equation, so equal improvements there tend to move the ratio slightly further than the same improvement to margin or order value.