Finance
Churn Rate Calculator
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Calculate monthly and annual customer churn rate, revenue churn, and average customer lifespan for free — no account required, runs entirely in your browser.
Customer Churn
Revenue Churn (optional)
Monthly Customer Churn4.50%
Annual Customer Churn42.45%
Monthly Revenue Churn4.00%
Avg. Customer Lifespan22.2 months
MRR lost to churn$2,000
Monthly churn = churned ÷ starting customers × 100. Annual churn = 1 − (1 − monthly rate)^12. Revenue churn = churned MRR ÷ starting MRR × 100.