Customer Retention and Churn Calculator
Free tools / Cordell Digital
Customer Retention and Churn Calculator
Retention uses only the starting customer cohort. New customers are excluded; churn is the complementary lost-customer share.
Your result
How to use this calculator
Use figures from the same reporting period and the same attribution scope. Sample inputs are hypothetical examples. Results describe the inputs you provide; they are not industry benchmarks or promises of future performance.
Calculation method
Retention uses only the starting customer cohort. New customers are excluded; churn is the complementary lost-customer share.
Your inputs and files are processed in this browser. This tool does not send them to a server or save an input history. Copy or download any results you want to keep.
Need help with your business website?
Cordell Digital builds websites and practical tools for businesses.
Talk about your website ↗