How does the Churn Rate Calculator work?

Enter your values into the input fields, adjust any parameters, and click Calculate. The tool processes your input instantly and displays accurate results. All calculations happen locally in your browser for privacy and speed.

Is the Churn Rate Calculator free to use?

Yes, this tool is completely free with no signup required. Everything runs locally: Customers at Start and Customers at End are processed on your device, never sent to a server — your data is never uploaded to any server, ensuring complete privacy and security.

Are the Churn Rate Calculator results accurate?

Yes, the calculator uses standard mathematical formulas and algorithms to ensure accurate results. Calculations are performed using JavaScript's built-in precision. For financial or medical decisions, always verify with a professional.

📉 Churn Rate Calculator

Calculate monthly/annual customer churn, revenue churn, net revenue retention (NRR)

Enter Customer Data

Customers at Start

Customers at End

New Customers (period)

Churned Customers (period)

Starting MRR ($)

Ending MRR ($)

New MRR (period, $)

Expansion MRR ($)

📖 Churn Rate Guide

Customer Churn = Churned Customers ÷ Starting Customers × 100%
Annual Churn = 1 - (1 - Monthly Churn)^12
Revenue Churn = (Start MRR + New MRR - End MRR) ÷ Start MRR
NRR = (Start MRR + Expansion MRR - Churned MRR) ÷ Start MRR × 100%
Avg Lifetime = 1 ÷ Monthly Churn Rate (months)
Monthly churn < 2% is good, > 5% is a red flag

📉 Churn Rate Calculator

Enter Customer Data

📖 Churn Rate Guide

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