Churn Rate Calculator

Calculate customer churn rate, retention rate and average customer lifetime. 🔒 Runs in your browser

Churn rate–
Retention rate–
Average customer lifetime (periods)–
Formulas
  • Churn rate = Customers lost ÷ Customers at start × 100
  • Average lifetime = 1 ÷ Churn rate

How to use the Churn Rate Calculator

  1. Choose your currency if the calculator uses amounts.
  2. Enter your own numbers in the fields (the examples are only a starting point).
  3. Results update instantly as you type.
  4. Check the formulas below the results, and copy the results to share them.

About this tool

Churn rate is the share of customers who stop buying or cancel during a period, usually a month. It is the key health metric for subscriptions and SaaS.

Frequently asked questions

What is a good monthly churn rate?

For SaaS, under 5% monthly is common for small businesses and under 1% for enterprise customers.

Are my numbers saved or sent anywhere?

No. Everything is calculated in your browser; only your currency choice is remembered on this device.

Is the Churn Rate Calculator free?

Yes. The Churn Rate Calculator is completely free to use, with no sign-up and no limits on normal use.

Is my data safe?

Yes. This tool runs entirely in your web browser using JavaScript. Your text is never uploaded to our servers.

Does it work on mobile?

Yes, it works in any modern browser on phones, tablets and computers. No app to install.

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