How does the Churn Rate Calculator work?

Count customers at the start of the period Then: Count customers lost (cancelled, not renewed) during the period Then: Churn rate = (Customers lost / Start customers) × 100% Then: Monthly and annual churn compound — 5% monthly churn = 46% annual churn.

Can you give an example of how to use the Churn Rate Calculator?

Example: Input 1,000 customers start · 30 cancelled gives a result of 3% monthly churn (Healthy for B2C; high for B2B).

Is the Churn Rate Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Churn Rate Calculator?

Our Churn Rate Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

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Churn Rate Calculator

Customers at start

Customers lost

Churn rate measures the percentage of customers or subscribers who stop using a product or service during a given time period. High churn destroys recurring revenue; reducing churn by just 1–2% can dramatically improve long-term revenue.

Monthly churn	Annual retention	Annual churn
1%	88.6%	11.4%
2%	78.5%	21.5%
3%	69.7%	30.3%
5%	54%	46%
10%	28.2%	71.8%

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Pro Tip

Track revenue churn alongside customer churn — losing a large customer while gaining many small ones can mask a serious revenue problem.

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Did You Know?

SaaS companies with sub-2% monthly churn (under 22% annual) are considered healthy. Top-quartile B2B SaaS companies achieve below 1% monthly churn.

References

›Churn rate — Investopedia
›What is a good SaaS churn rate? — Baremetrics

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Churn Rate Calculator

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Monthly churn → Annual customer retention

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