Churn Rate Calculator measures how many customers you lost over a period. Use it for monthly, quarterly, or annual reviews when you know the starting customer count and how many left. In this article you will learn how to pick a period, enter the counts, and read churn, retention, and lifetime estimates.
The tool is at form.ms/tools/churn-rate-calculator.
1. Open the calculator
Go to the Churn Rate Calculator. Churn is customers lost divided by customers at start.
2. Pick a period and enter counts
Choose Monthly, Quarterly, or Annual. Type Customers at start and Customers lost. Starting MRR and MRR lost are optional. New signups during the period do not go in the start count.
3. Read churn and retention
Annual churn uses 1 minus (1 minus period churn) to the power of n. It does not multiply the monthly rate by 12. Retention and average lifetime sit next to the headline rate.
Numbers stay in your browser. If you track who stayed instead of who left, use the Retention Rate Calculator.
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