Essential SaaS Metrics: MRR, ARR, Churn, and LTV
Running a successful SaaS (Software as a Service) business requires deep understanding of recurring revenue metrics. Monthly Recurring Revenue (MRR), Annual Recurring Revenue (ARR), Churn Rate, and Customer Lifetime Value (LTV) are the four pillars that investors, founders, and operators use to assess the health and trajectory of subscription businesses.
MRR and ARR: Your Revenue Engine
MRR = ARPU x Total Active Users. Monthly Recurring Revenue is the predictable, normalized revenue your business generates each month. ARR (Annual Recurring Revenue) is simply MRR multiplied by 12. These metrics smooth out one-time payments and seasonal fluctuations, providing a clear picture of your revenue trajectory. Tracking MRR growth rate month-over-month is critical for assessing business momentum.
Churn Rate: The Silent Killer
Churn Rate = Churned Users / Users at Start of Period. Churn rate measures the percentage of customers who cancel their subscription during a given period. Even a small monthly churn rate compounds dramatically over time. A 5% monthly churn means you lose nearly half your customer base in a year. Best-in-class SaaS companies maintain monthly churn rates below 2% for SMB products and below 1% for enterprise products.
LTV: The Long-Term Value of Every Customer
LTV = ARPU / Churn Rate. Customer Lifetime Value estimates the total revenue you can expect from a single customer over their entire relationship with your business. The golden rule of SaaS is that LTV should be at least 3x your Customer Acquisition Cost (CAC). Our SaaS Subscription Tracker calculates all four metrics instantly so you can monitor the financial health of your subscription business in real-time.