Free tool
Customer churn rate calculator
See what share of customers you lose in a period.
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How it works
How it works
Churn rate = customers lost divided by customers at the start of the period. Retention is 100% minus churn. Average lifetime is 1 divided by the churn rate, in the same time periods.
FAQ
About this calculator
Should new customers be counted?
Not in the churn rate. Use the customers you had at the start and how many of them left.
What period should I use?
Monthly is common for subscriptions. Use the same period for churn and the lifetime result.
What is a good churn rate?
It depends on the business and customer type, so compare with your own history and similar businesses.
Is anything saved?
No. The math runs in your browser and nothing you enter is sent to us.
Is this tax or financial advice?
No. It is a calculator for general information. Check the numbers against your own records, and ask an accountant before you act on them.
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General information, not tax or legal advice. How we write and check our tools.