Churn Rate Calculator

Enter your starting customers, lost customers, and time period to get churn rate, retention rate, and average customer lifetime.

Customer Data

Enter your data and click Calculate Churn

Summary

Enter your starting customers, lost customers, and time period to get churn rate, retention rate, and average customer lifetime.

How it works

  1. Enter the number of customers at the start of the period.
  2. Enter the number of customers lost during that period.
  3. Select whether the period is monthly or annual.
  4. The calculator shows churn rate, retention rate, and average customer lifetime instantly.
  5. Use the annualized view to convert a monthly churn rate to yearly figures.

Use cases

  • Track monthly subscriber cancellations for a SaaS product.
  • Benchmark churn against industry averages to spot unhealthy growth.
  • Estimate average customer lifetime to inform LTV projections.
  • Convert monthly churn rate to annual churn for investor reporting.
  • Evaluate the impact of a retention campaign by comparing before/after churn.
  • Set churn reduction targets based on current retention rate.

Frequently Asked Questions

Last updated: 2026-06-10 · Reviewed by Nham Vu