Business calculator
Churn Rate Calculator
Estimate customer churn rate, retention rate, and ending customers from starting, lost, and new customers.
Formula
Customer churn
Churn rate = lost customers / starting customers x 100
50 lost customers from 1,000 starting customers is a 5% churn rate.
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?+
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?+
Estimate customer churn rate, retention rate, and ending customers from starting, lost, and new customers.
How accurate is the Churn Rate Calculator?+
Churn Rate Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the Churn Rate Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
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
Enter your details
Enter starting, lost, and new customers, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the customer churn: Churn rate = lost customers / starting customers x 100.
- 3
Compare scenarios
Change one or more inputs to see how they affect the churn Rate Calculator result before you use the estimate.
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