Hustlay
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Churn sets a hard ceiling on growth

Enter customers at the start of the period and how many you lost. See your monthly churn, retention, and what it compounds to annualized.

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Customers
Revenue (optional)
$
$
Your numbers
Monthly churn
5.0%
Retention rate
95.0%
Annualized churn
46%
Revenue churn
5.0%
Moderate churn (5.0%/mo).
Workable, but worth investigating why customers leave — onboarding, pricing fit, or a missing feature are the usual suspects.
How it's calculated

Churn rate = customers lost ÷ customers at start

Worked example
200 customers at the start of the month, 10 cancel: churn = 10 ÷ 200 = 5% monthly, retention = 95%. Compounded over a year, that's 1 − (1 − 0.05)¹² ≈ 46% annualized — not 60%.
Churn vs. retention
Retention rate is just 100% minus churn — the same underlying number, framed the other way round. Both are worth tracking side by side since stakeholders often respond differently to "95% retention" than "5% churn," even though they're identical.
FAQ

Common questions about churn rate

Customer churn is the percentage of customers who cancel. Revenue churn is the percentage of MRR lost. They diverge when the customers who leave aren't your average-size accounts — losing 10% of customers who were all on your cheapest plan hurts less than losing 10% who were on your biggest plans.
Related free tools:
LTV calculator →CAC calculator →MRR & ARR calculator →
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