SaaS metrics

Churn Rate Calculator

Calculate customer churn rate and revenue churn rate to understand retention performance.

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Results update as you type. Nothing is sent anywhere — the maths runs in your browser.

Active customers at period start.

Customers who cancelled.

$

Monthly recurring revenue at start.

$

Revenue from cancelled customers.

Formula

Customer Churn = (Lost ÷ Start) × 100 Revenue Churn = (MRR Lost ÷ MRR Start) × 100

Customer churn counts accounts lost. Revenue churn measures the dollar impact.

Monthly Customer Churn
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Enter values to calculate.

Revenue churn rate
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Annualized churn
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Customers retained
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MRR retained
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Frequently asked questions

What is a good churn rate?

B2B SaaS: 3-5% annual is excellent. SMB/B2C: 5-7% monthly is common. Enterprise often under 1% monthly.

Customer vs revenue churn?

Customer churn counts accounts. Revenue churn measures dollars lost — they differ when larger accounts churn.

How do I reduce churn?

Better onboarding, proactive customer success, feature adoption tracking, and at-risk outreach.

What is net revenue churn?

Subtracts expansion from churned revenue. Negative net churn means existing customers grow faster than others leave.