Business calculator

Churn Rate Calculator

Estimate customer churn rate, retention rate, and ending customers from starting, lost, and new customers.

FormulaChurn rate = lost customers / starting customers x 100

Formula

Customer churn

Churn rate = lost customers / starting customers x 100

50 lost customers from 1,000 starting customers is a 5% churn rate.

FAQ6 common questions for this calculator.

FAQs

Should new customers be in the churn denominator?+

This calculator uses starting customers as the denominator, which is common for period churn.

What is retention rate?+

Retention rate is 100% minus the churn rate for the period.

How does the Churn Rate Calculator calculate the result?+

For the Churn Rate Calculator, it uses the Customer churn: Churn rate = lost customers / starting customers x 100. 50 lost customers from 1,000 starting customers is a 5% churn rate.

What information do I need to use the Churn Rate Calculator?+

For the Churn Rate Calculator, enter starting, lost, and new customers. Keep the units consistent with the calculator fields and compare your setup with the worked example on the page.

How accurate is the Churn Rate Calculator?+

Churn Rate Calculator is accurate when the business inputs come from the same reporting period and definition. It applies the Customer churn. Platform attribution windows, refunds, taxes, or overhead allocation can change the interpretation.

What should I check before using the Churn Rate Calculator result?+

For the Churn Rate Calculator, check starting, lost, and new customers, measurement period, attribution window, revenue basis, costs, and rounding rules. Business metrics change meaning when inputs come from different systems or time ranges.

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Business guide

How to use the Churn Rate Calculator

Estimate customer churn rate, retention rate, and ending customers from starting, lost, and new customers. The page also explains the customer churn and shows a practical example: 50 lost customers from 1,000 starting customers is a 5% churn rate.

  1. 1

    Enter your details

    Enter starting, lost, and new customers, then complete any other fields shown in the calculator.

  2. 2

    Check the calculation

    Review the result alongside the customer churn: Churn rate = lost customers / starting customers x 100.

  3. 3

    Compare scenarios

    Change one or more inputs to see how they affect the churn Rate Calculator result before you use the estimate.