Converters · Converter
Monthly Churn to Annual Churn Converter
Convert a monthly churn rate to the effective annual churn rate using compound retention math.
How It Works
This converter turns a monthly churn rate into the effective annual churn rate, accounting for the fact that customers who already churned in an earlier month can't churn again later in the year. It uses compound math, not simple multiplication — a common source of confusion when people estimate annual churn as monthly churn x 12.
Examples
Simple example
Monthly Churn = 5% → Annual Churn = 1 - (1 - 0.05)^12 → Annual Churn ≈ 46.0%
Typical SaaS example
Monthly Churn = 2% → Annual Churn = 1 - (1 - 0.02)^12 → Annual Churn ≈ 21.5%
SaaS Use Cases
- Translating a monthly churn dashboard figure into the annual churn number investors and boards typically ask for
- Comparing your churn against annual benchmarks published for the SaaS industry
- Checking whether a churn figure quoted informally is monthly or annual
- Setting an annual retention target and working backward to a monthly goal
Limitations
This conversion assumes a constant monthly churn rate held steady for all 12 months. It does not account for seasonality, cohort effects, changes in churn rate over the year, or the distinction between logo churn and revenue churn.
Related Tools
Frequently Asked Questions
Why isn't annual churn just monthly churn x 12?
Because customers who already churned in month 3 can't churn again in month 8. Multiplying by 12 overstates annual churn; the compound formula 1 - (1 - monthly churn)^12 accounts for the shrinking base of remaining customers.
How do you convert monthly churn to annual churn?
Use Annual Churn = 1 - (1 - Monthly Churn)^12, with the churn rate expressed as a decimal in the calculation.
Is a 5% monthly churn rate good or bad?
This converter doesn't benchmark churn — it only converts monthly to annual. A 5% monthly rate compounds to roughly 46% annual churn, which most SaaS businesses would consider high, but whether it's acceptable depends on your segment and price point.
Does this formula assume churn stays constant all year?
Yes. It projects a single monthly rate forward assuming no change in churn behavior across the 12 months.
What's the difference between logo churn and revenue churn here?
This converter is metric-agnostic — feed it a logo churn rate and it converts logo churn, feed it a revenue churn rate and it converts revenue churn. The compounding math is the same either way.
Want this calculated automatically from real data?
Connect Stripe in read-only mode and Dnoise tracks Annual Churn Rate automatically every month.
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