Growth maths · Free
CAC / LTV Calculator
Unit economics with a plain-English verdict.
CAC
500
LTV
3,600
~20 month lifetime
LTV : CAC
7.2×
Target 3× or more
Payback
2.8 mo
Target under 12
Healthy — you can afford to spend more on growth.
How to use it
- Enter marketing spend, new customers, monthly revenue per customer, gross margin and monthly churn.
- Read the ratio and payback period.
What good looks like
- LTV:CAC of 3 or more.
- Payback under 12 months.
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