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Churn Rate Calculator
Customer churn and retention for a period.
7 %
Churn rate
70
Customers lost
93 %
Retention rate
8 %
Net growth
Runs entirely in your browser. Nothing is sent anywhere.
How it works
- 1Enter your values.
- 2See the result update instantly as you type.
- 3Change any value to compare scenarios.
About this tool
Churn Rate Calculator: Customer churn and retention for a period. Type your numbers and the result is calculated instantly — no button to press, nothing to install. All math runs locally in your browser, so the values you enter are never sent anywhere.
Example
| Input | |
|---|---|
| Customers at start of period | 1,000 |
| New customers during period | 150 |
| Customers at end of period | 1,080 |
| Result | |
| Churn rate | 7 % |
| Customers lost | 70 |
| Retention rate | 93 % |
| Net growth | 8 % |
How do I use the Churn Rate Calculator?
Enter your values. See the result update instantly as you type. Change any value to compare scenarios.
Is the Churn Rate Calculator free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Is my data sent to a server?
No. Everything is calculated locally in your browser. Nothing you enter is uploaded, logged or stored.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.