Churn Rate Calculator
Measure the share of customers lost in a period from starting and lost counts.
Quick answer: enter your details below and click Calculate Churn Rate — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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How to use
- Enter customers at the start of the period.
- Enter customers lost during it.
- Click Calculate Churn Rate.
About this tool
Enter customers at the start of a period and how many left during it, and the tool gives the churn rate and the retention rate. These are estimates from your own counts, and they are most useful when tracked the same way each month.
Frequently asked questions
Does churn include new customers?
No. It only compares lost customers with the starting count, so new sign-ups do not hide losses.
What churn is acceptable?
It varies by industry and model, so compare with your own past months rather than a generic target.