Customer Churn Rate Calculator

Use our free calculator to measure your customer churn rate.

Churn Rate Calculator

Find out what percentage of your customers are churning over a given period.

Customers at the Start of the Period

Customers at the End of the Period

What is Customer Churn Rate?

Customer Churn Rate represents the percentage of customers who stop using your product or service during a specific time period. It’s a critical metric for understanding retention and long-term growth stability.

Churn Rate = (Customers Lost ÷ Customers at Start) × 100

For example, if you started the month with 500 customers and ended with 450, you lost 50 customers. Your churn rate would be (50 ÷ 500) × 100 = 10%.

Why Customer Churn Rate Matters for SaaS?

Churn Rate directly affects your growth and revenue predictability. Even a small increase in churn can drastically reduce customer lifetime value (LTV) and overall profitability.

Monitoring churn helps you identify product or customer success issues early — before they impact your bottom line.

Next Steps

Use your Churn Rate result inside the Growth Rate Simulator to see how retention impacts your long-term revenue and customer growth.