One Clear Tool

Churn Rate Calculator

Calculate customer churn rate from starting customers and customers lost.

Your numbers

Estimate only. This is not financial, tax, payroll, lending, or professional advice.

Result

Common questions

What is churn rate?

Churn rate is the percentage of customers lost during a period compared with the starting customer count.

Is this business advice?

No. This is an estimate-only calculator for quick planning and reporting.

Make the churn rate estimate useful

How to use this calculator

Enter the number of customers, subscribers, or accounts you started with and how many were lost during the period. The calculator turns those numbers into a churn rate percentage.

What the result means

Treat the result as a retention signal, not the whole story. Churn can change because of pricing, onboarding, product quality, support, seasonality, competition, or the type of customer acquired.

Useful next checks

After calculating churn rate, compare it with conversion rate, return on investment, break-even point, and the cost of replacing lost customers.

Related tools

Measure how many customers were lost during a period.

How to use this tool

Enter the number of customers you started with and the number lost.

What the result means

The result shows the share of customers lost, which helps compare retention over time.

Useful next check

Compare churn with conversion rate and revenue recovery to understand growth quality.

Related tools

Results are planning estimates for education and comparison only. They are not financial, tax, legal, lending, payroll, construction, or professional advice.