Free Churn Rate and Retention Calculator
Find out what share of customers, members or subscribers you lose in a period, your retention rate and how long an average customer stays. Useful for gyms, institutes, agencies and subscription businesses. This free churn rate calculator runs in your browser, with no sign-up.
How to use the churn rate calculator
- Choose a period: a month, quarter or year.
- Enter customers at the start of the period and how many of them stopped buying or cancelled.
- Optionally add new customers to see net growth.
- Read churn, retention and lifespan. Monthly churn is also converted to a yearly figure.
Churn formulas
| Metric | Formula | Example |
|---|---|---|
| Churn rate | Customers lost / customers at start x 100 | 14 / 200 = 7% |
| Retention rate | 100% - churn rate | 93% |
| Average lifespan | 1 / churn rate | 1 / 0.07 = about 14 months |
| Yearly churn from monthly | 1 - (1 - monthly churn) to the power 12 | About 58% |
A small monthly churn adds up. Losing 7% of customers a month means losing more than half of them within a year.
Who should track churn?
- Gyms, salons and coaching centres with monthly memberships or fees.
- Agencies and freelancers with monthly retainer clients.
- Software, subscription boxes and any business with repeat orders.
How to reduce churn
- Call or message customers who have not visited or ordered for a while.
- Ask leaving customers why. Short exit surveys reveal fixable problems.
- Deliver early wins in the first weeks, when churn is usually highest.
- Reward loyalty with renewals, bundles or member pricing.
Lower churn raises lifetime value. See the effect in the CLV calculator.
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Frequently Asked Questions
Is this churn rate calculator free?
Yes. It is free with no sign-up, and your numbers stay in your browser.
How is churn rate calculated?
Divide the number of customers lost during the period by the number of customers at the start, then multiply by 100.
What is a good churn rate?
It depends on the business. Lower is always better, and the trend over time matters more than one number. Compare your own months and quarters.
How do I convert monthly churn to annual churn?
Annual churn is 1 minus (1 minus monthly churn) to the power of 12. The calculator does this automatically.