Customer Churn Cost Calculator
Estimate the customers, revenue and gross profit lost through attrition, plus the cost of replacing customers who leave.
Enter your customer economics
Build the full churn and retention case
Current churn vs. target churn
| Month | Customers at current churn | Customers at target churn | Extra customers retained | Revenue preserved | Gross profit preserved | Cumulative net value |
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Cost under different churn outcomes
| Scenario | Monthly churn | Ending customers | Revenue preserved | Net value | ROI | Signal |
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Minimum churn improvement required
The highest target churn rate that still produces enough value to cover the retention investment.
Required improvement from the current monthly churn rate.
Approximate net economic value created over the selected analysis period.
Customer churn costs more than the revenue lost in the month a customer leaves.
Attrition reduces future recurring revenue, removes gross profit, creates replacement acquisition and onboarding expense, and can leave a revenue gap while the business finds another customer.
The calculator separates the value preserved by lower churn from the cost of the retention program, helping decision-makers see whether customer-success, support or product improvements can earn an acceptable return.