Churn Rate Calculator
Calculate customer churn rate and retention rate for a selected period.
How this calculator works
How to use this calculator
Enter the required business values in the fields, then click Calculate. Review the result and use it as a quick planning estimate for business analysis, reporting, or decision-making.
Formula used
Churn Rate = Customers Lost ÷ Customers at Start of Period × 100. Retention Rate = 100 − Churn Rate.
Example calculation
Customers at Start = 1,000 and Customers Lost = 80. Churn Rate = 80 ÷ 1,000 × 100 = 8.00%. Retention Rate = 92.00%.
What the result means
A lower churn rate usually means stronger retention. Track churn over time to identify whether product experience, pricing, support, or competition is affecting customer loyalty.
Frequently asked questions
What is a good churn rate?
It depends on the industry and business model. Subscription businesses usually compare churn by month, quarter, or year.
Can churn rate be higher than 100%?
Using this basic formula, churn should not exceed 100% because customers lost should not be greater than customers at the start.
Should new customers be included?
This simple churn formula focuses on starting customers and lost customers. Some businesses use more advanced formulas that adjust for new customers.