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Calculator · 045

Churn Rate Calculator

Measure how fast customers leave and what it costs — and decide whether retention work justifies the revenue it protects.

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Churn rate

Average
Scenario lens Current · Benchmark · Optimized
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Leverage

Formula

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.

ContextTypical median
SMB SaaS (monthly)3–5%
Mid-market SaaS1–2%
Enterprise SaaS0.5–1%
Consumer subscription5–9%
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.