Churn Rate Calculator

Churn Rate Calculator

Find your Google Ads ROI instantly with this free tool

The Benefits of Using This Tool

  • Customer Retention Focus
  • Service Improvement
  • Business Health Indicator
  • Market Strategy Refinement
  • Revenue Forecasting

Minimise Customer Loss: Reveal Your Churn Rate Now!


Churn Rate Calculator Documentation

For Users


The Churn Rate Calculator assists businesses in determining the percentage of customers or subscribers who stop using their services within a given time period. This tool is vital for assessing customer retention and loyalty.

How to Use Input Fields:

  • Number of Customers at Start of Period: Enter the customer count at the beginning of the period.
  • Number of Customers Lost During Period: Input the number of customers who discontinued the service.

Calculating Churn Rate:

  • Click 'Calculate Churn Rate' after entering the data.
  • The calculator will display the churn rate as a percentage.

Resetting Data:

  • Use the 'Reset' button to clear all inputs for a new calculation.

Tips for Accurate Calculations

  • Regular updates with current customer data are essential for precise churn rate calculations.

For Developers

Application Structure

  • Uses HTML, CSS, and JavaScript.
  • Key functions include churn rate calculation and input validation.


  • CSS for design customisation; JavaScript for additional features or more complex calculations.

Responsive Design and Security

  • Adjusts layout for different screen sizes; includes input sanitization for security.

Testing and Deployment

  • Conduct unit and cross-browser testing; deployable on various platforms.

Support and Contribution

  • For any support requests or contributions, contact the development team or utilise the project's repository.