Churn & LTV Calculator
how much are you leaking?
Enter your customers, churned customers, and MRR to see your churn rate, retention, revenue lost, and lifetime value. Everything runs in your browser.
Live calculation
No login
Always free
Churn %
Monthly customer churn
Retention
Customers who stay
LTV
Lifetime value estimate
Free
No login to compute
Your numbers
How many customers you had at the beginning
How many cancelled during the period
Total MRR across your customers
Results
Churn rate
5%
Retention rate
95%
Monthly revenue lost to churn
$3,750
Based on average revenue per user of $150 / customer.
Estimated lifetime value (LTV)
$3,000
Simple LTV = ARPU ÷ churn rate.
Track churn and LTV trends over time inside BurnRateOS.
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BurnRateOS tracks churn, retention, and LTV automatically from your customer and revenue data — so you catch leaks before they sink your runway.
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