Churn Rate Calculator
Calculate customer and revenue churn, retention, and net revenue retention. For subscription and recurring-revenue businesses.
Use the Churn Rate Calculator
Enter customer counts and optionally MRR figures. Results include churn, retention, and NRR.
Customer counts
Start, lost, and optionally end count and new customers.
Revenue churn (optional)
Results
Customer churn
5%
Retention
95%
Customer churn = Lost ÷ Start × 100. For subscription businesses, track both customer and revenue churn; NRR > 100% means expansion outweighs churn.
What this metric means
Churn and retention show how well you keep customers and revenue. For subscription businesses they’re core health metrics.
How to improve
Focus on onboarding, product fit, support, and expansion (upsells). Track churn by cohort and segment to find root causes.
FAQs
What is customer churn?▾
Customer churn is the % of customers you had at the start of a period who left during that period. Churn = Lost ÷ Start × 100.
What is NRR?▾
Net revenue retention = (Start MRR − MRR lost + Expansion) ÷ Start MRR × 100. Above 100% means expansion from existing customers outweighs churn.
Why track both customer and revenue churn?▾
Customers can churn at different price points. Revenue churn and NRR show the financial impact and expansion effect.
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