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Churn Rate Calculator

Customer churn rate for a period, the annualized churn and the implied average customer lifetime.

Enter values

Results update as you type.

Result

Monthly churn

3%

Annualized churn
30.62%
Average lifetime
33.3 months

About the Churn Rate Calculator

Customer churn rate for a period, the annualized churn and the implied average customer lifetime.

Also known as: customer churn, subscriber churn, app churn, attrition rate, app-churn.

How to use this calculator

  1. Enter customers at start of month, customers lost.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

Churn = customers lost ÷ customers at start

Worked example

Using the values pre-filled in the calculator above:

  • Customers at start of month = 2,000
  • Customers lost = 60

the calculator returns:

  • Monthly churn: 3%
  • Annualized churn: 30.62%
  • Average lifetime: 33.3 months