Customer Churn Calculator
Calculate lost customers as a percentage of customers at period start.
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Try customer churn calculator
Your entries stay in your browser. Nothing is sent to LaunchKit to perform this calculation.
Your result
How to use this tool
Divide customers lost during a period by the number held at its start.
How the calculation works: Churn = lost ÷ starting customers × 100
- Review the example values and replace them with your own figures or text.
- Press Generate result to see a calculation, transformed text or ready-to-use document.
- Copy or download the result to use it in your own workflow.
What to check before using the result
Figures are only as reliable as the data entered. Check that your inputs cover the same period, use consistent units, and reflect real fees, taxes or costs relevant to your situation. This calculator does not replace accounting, financial, legal or tax advice.