Calculator · 045
Churn Rate Calculator
Measure how fast customers leave and what it costs — and decide whether retention work justifies the revenue it protects.
Churn rate
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AverageFormula
Churn rate = Customers lost / Customers at start × 100
Understanding churn rate
Reference material — the calculator above stays the primary tool.
What churn rate measures
Churn rate is the share of customers lost over a period — customers lost divided by those at the start. Because retained customers cost nothing to re-acquire, churn is one of the most expensive metrics in any recurring business: every point lost must be replaced just to stand still.
Lower is better here, and small differences compound: the gap between 3% and 1.5% monthly churn is the gap between losing a third and a sixth of customers a year.
How to read your result
The result is labelled against a SaaS benchmark, with lower churn marked stronger:
Strong — well below the benchmark; retention is a competitive advantage. Average — near the benchmark; targeted retention work pays off. Low — above the benchmark; churn is the constraint and acquisition is leaking out the bottom.
Churn benchmarks by model
Churn norms vary by segment and contract. Treat these as orientation, not targets.
| Context | Typical median |
|---|---|
| SMB SaaS (monthly) | 3–5% |
| Mid-market SaaS | 1–2% |
| Enterprise SaaS | 0.5–1% |
| Consumer subscription | 5–9% |
Levers that cut churn
Most churn is set early: strengthen onboarding and time-to-value, act on usage-decline signals before renewal, fix involuntary churn from failed payments, and resolve support friction fast. Model the reduction as a scenario above to see the customers and revenue it retains.
Is all churn addressable?
No — read churn alongside churn impact and retention revenue, which the related tools cover. Some churn is structural; size the preventable share before assuming the full rate can be eliminated.