Free SaaS tool
SaaS churn calculator
Five calculators for customer churn, revenue churn, cohort decay, lifetime value, and total churn cost. Plug in your numbers — results update instantly.
Built by sessionvision — analytics that detect churn signals before customers leave.
Customer churn rate calculator
monthly churn rate
5.0%
Annualized churn rate
46.0%
You'd keep 54.0% of customers over a year. Reducing churn by even 1% compounds into significantly more retained revenue.
Understanding SaaS churn
What is SaaS churn rate?
Churn rate is the percentage of customers or recurring revenue lost during a given period. It is the single most important metric for subscription businesses because it compounds — a 5% monthly churn rate means losing nearly half your customer base every year.
How to calculate churn rate
Churn Rate (%) = (Customers Lost During Period / Customers at Start of Period) x 100. For revenue churn, replace customer counts with MRR values. Net revenue churn also subtracts expansion revenue from losses, which can result in negative churn — the gold standard for SaaS.
What is a good churn rate for SaaS?
Benchmarks vary by segment: SMB SaaS typically sees 3–5% monthly churn, mid-market targets 1–2%, and enterprise products with annual contracts aim for under 1% monthly (less than 10% annually). Net revenue retention above 100% — meaning expansion outpaces losses — is considered best-in-class.
What is net revenue retention (NRR)?
Net revenue retention measures the percentage of recurring revenue retained from existing customers, including expansions and contractions. An NRR above 100% means your existing customer base is growing without any new sales. Top SaaS companies maintain 110–130% NRR.
Learn more about tracking user engagement in our docs, or read our latest thinking on the blog.
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