Customer churn rate
Business / FREE CALCULATOR
Measure customer losses relative to the starting customer base.
Your answer starts here.
Enter your values and select Calculate to see the result and any available breakdown.
How to use this calculator
- Enter customers lost during period. Use the unit shown beside the field.
- Enter customers at period start. Use the unit shown beside the field.
- Select Calculate and review the result. Select Reset to restore the example inputs.
How the calculation works
Customers lost during period/Customers at period start*100
Worked example
Customers lost during period = 20; Customers at period start = 1000. Result: 2 %.
Understand your result
Measure customer losses relative to the starting customer base. The result is expressed in %.
Assumptions and limitations
Do not substitute revenue churn or include newly acquired customers in the denominator. Results are rounded for display.
Questions about this tool
What does this tool calculate?
Measure customer losses relative to the starting customer base.
What should I check before using the answer?
Do not substitute revenue churn or include newly acquired customers in the denominator.
Related guides
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