Financie

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Churn Rate Calculator

Zákazníci na začiatku

Customers lost

What is Churn Rate Calculator?

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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.

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How to Churn Rate Calculator

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1Count customers at the start of the period
2Count customers lost (cancelled, not renewed) during the period
3Churn rate = (Customers lost / Start customers) × 100%
4Monthly and annual churn compound — 5% monthly churn = 46% annual churn

Worked Examples

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Example 1

Given:1,000 customers start · 30 cancelled

Výsledok:3% monthly churn

Healthy for B2C; high for B2B

Example 2

Given:5% monthly churn

Výsledok:46% annual churn

Nearly half your base gone each year

Monthly churn → Annual customer retention

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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

Len na informačné účely. Tento nástroj nepredstavuje finančné poradenstvo. Pred investičnými alebo finančnými rozhodnutiami sa poraďte s kvalifikovaným finančným poradcom.

Deep Dive

Read the full guide on how to use this calculator effectively

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Accuracy-checked

Reviewed October 2026

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