Churn Rate Calculator: See How Fast Customers Slip Away
Enter customers at the start and end of a period, and get your monthly churn rate in seconds, plus a clear view of the revenue at stake.
Free with a Brainito account. No credit card required.
Quantify the Leak
Turn a vague sense that customers are leaving into a precise monthly churn percentage you can track.
See the Revenue Cost
Connect your churn rate to lost recurring revenue so retention work gets the priority it deserves.
Track Retention Progress
Recalculate each month to prove whether your onboarding and retention fixes are actually working.
Frequently Asked Questions
How do I calculate churn rate?
Divide the customers you lost during a period by the customers you had at the start, then multiply by 100. Losing 25 of 500 customers in a month is a 5 percent monthly churn rate. The calculator handles the math instantly.
What is a good churn rate in 2026?
For SaaS, 3 to 5 percent monthly is common for SMB products, while enterprise products aim for under 1 percent. Context matters a great deal, so track your own trend line first and benchmark against others second.
Is the Churn Rate Calculator free?
Yes. It is free after creating a Brainito account, so you can run it every month, compare different cohorts, and keep a running record of how your retention is trending over time.
Put a hard number on churn before it quietly drains your revenue
One account unlocks churn rate calculator plus 340+ marketing tools, weekly audits, and your action plan.