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Churn Rate Calculator
Find your churn and retention rate over a period.
Churn rate
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Over the period.
| Retention rate | — |
|---|---|
| Customers kept | — |
| Started with | — |
| Lost | — |
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Enter your figures above to see the step-by-step working.
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How the Churn Rate Calculator Works
Churn rate is the percentage of customers (or subscribers) you lose over a period: customers lost divided by customers at the start, times 100. Lose 25 of 500 customers in a month and your monthly churn is 5%. Retention rate is simply the rest — 95%.
Churn compounds fast: 5% monthly churn means losing nearly half your customers over a year if none are replaced. It’s one of the most important health metrics for any subscription business.
churn rate = customers lost ÷ customers at start × 100
Frequently Asked Questions
How do you calculate churn rate?
Divide the customers lost in a period by the number you started with, then multiply by 100.
What is a good churn rate?
Lower is better. Many SaaS businesses aim for under 5–7% annually for larger customers; monthly consumer churn is often higher.
What is retention rate?
The opposite of churn — the share of customers you keep. Retention + churn = 100%.
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