Business & SaaS · free calculator
Subscription cohort LTV calculator
Project lifetime value per cohort from MRR, gross margin, and monthly churn — the unit-economics number that decides paid-acquisition spend.
Cohort LTV
Gross profit per starting customer over 24 months
Monthly net revenue retention
Churn and expansion combined
Show the work
- Cumulative cohort revenue$88,687
- Cumulative gross profit$72,724
- Customers left at end37.5
- Steady-state LTV shortcut$1,005
Cohort LTV is a survival curve, not a single magic number
Subscription LTV starts with a simple question: how much gross profit will this group of customers produce before they churn?
This calculator projects the cohort month by month:
- Starting customers x monthly price = starting MRR
- Monthly churn reduces the active customer count
- Expansion increases average revenue per remaining customer
- Gross margin converts revenue into contribution profit
Why net revenue retention matters
Monthly net revenue retention combines churn and expansion. If 4% of customers churn but remaining accounts expand 1.5%, the cohort still shrinks, but not as fast as customer churn alone suggests.
Use this result to check acquisition spend, pricing changes, onboarding quality, and whether a subscription segment is healthy enough to scale.
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