How it works
Annual churn = 1 − (1 − monthly churn)^12. Remaining base = starting base × (1 − monthly churn)^12.
Retention and conversion
Monthly to annual churn calculator
Convert a constant monthly churn rate into compounded annual loss and estimate the remaining base after 12 months.
- Compounded annual churn
- 45.96%
- 12-month retention
- 54.04%
- Expected remaining base
- 540.36
Assumes constant churn with no new users, reactivation, or expansion. A fractional user count represents an expected value.
Worked example
5% monthly churn gives 45.96% annual churn, not 60%. Roughly 540 of 1,000 initial subscribers remain.
Assumptions and limits
Assumes constant churn with no new users, reactivation, or expansion. A fractional user count represents an expected value.
Frequently asked questions
How do I use the monthly to annual churn calculator?
Convert a constant monthly churn rate into compounded annual loss and estimate the remaining base after 12 months.
Why not multiply the rate by 12?
Each month the rate applies to a smaller base. Compounding represents that successive reduction.
Do I need an account and are my inputs uploaded?
No account is required. Calculations run in your browser. Entered numbers and text are not included in tool analytics events; only the tool ID, language, and action are recorded.
Want to go past the numbers and see the real market?
Noctral shows estimated MRR, live ads, creators, and competitors so you can validate opportunities with real signals instead of projections.
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