Churn rate is the percentage of customers who leave during a period, and it is the silent killer of subscription businesses because it compounds against every dollar of new growth. This calculator divides the number of customers lost during a period by the number you had at the start, giving churn as a percentage, and it also shows the mirror figure, your retention rate. Watching churn helps you spot product or onboarding problems early, since a rising churn rate erodes recurring revenue even when sales look strong. Lower churn means each acquired customer stays longer and your lifetime value climbs. Enter your starting customer count and how many you lost, and both rates update immediately. Track the same window month over month to see whether retention efforts are working. All math runs locally in your browser, so your customer data stays private.
It divides customers lost during a period by the number of customers you started with, shown as a percentage.
Retention is the complement of churn. If churn is 5 percent, retention is 95 percent of customers kept in the period.
High churn erodes your base and forces constant acquisition. Tracking it reveals how well you keep customers over time.
Churn rate is the percentage of customers who leave during a period, and it is the silent killer of subscription businesses because it compounds against every dollar of new growth. This calculator divides the number of customers lost during a period by the number you had at the start, giving churn as a percentage, and it also shows the mirror figure, your retention rate.
Yes. Churn Rate Calculator is completely free, with no sign-up and no usage limits.
Yes. Churn Rate Calculator runs in any modern web browser. There is nothing to download or install.
Yes. Churn Rate Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.