Churn Rate Calculator
Calculate customer churn rate for a period.
Prefer an explanation? Read the guide.
Tip: you can type commas (e.g., 10,000).
Example
Using the default inputs, the result is:
3%
- Customers at start
- 1,000
- Customers lost
- 30
Formula
Churn Rate = Customers Lost ÷ Customers at Start
- Inputs represent the same period (e.g., month, quarter).
FAQ
What about expansion revenue?
Customer churn ignores upsells/downsells. Use NRR/GRR when you want a revenue-based view.
How to interpret
Improve churn tracking
- Track churn by cohort and plan to see where retention breaks.
- Separate voluntary churn from involuntary (failed payments).
- Watch leading indicators (activation, support tickets, usage).
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