Subscription Growth Analytics
SaaS Churn & Retention Calculator
Calculate your monthly customer churn rate, revenue churn %, customer half-life, and projected MRR erosion.
Account Inputs
Monthly Logo Churn
2.50%
Logo loss rate
Monthly Retention
97.50%
100% - Churn Rate
Avg Customer Lifespan
40.0 Months
1 / Churn Rate
Revenue Impact Breakdown
Gross Lost Monthly Recurring Revenue (MRR):
-$2,475 / month
Net MRR Churn Rate (Inc. Expansion):
1.69% / month
Projected 12-Month Lost Revenue:
-$29,700 / year
Customer Half-Life (50% Cohort Decay):
27.4 Months
The Economics of SaaS Churn
Churn rate is the percentage of subscribers who discontinue their subcriptions within a given time period. In SaaS models, churn is the ultimate growth ceiling: even high customer acquisition rates cannot offset a high churn bucket.
Logo Churn vs. Revenue Churn
Logo churn measures the raw percentage of customer accounts lost. Revenue churn measures the net dollar amount of Monthly Recurring Revenue (MRR) lost. Negative net revenue churn occurs when upsells exceed churn loss.
Impact on Customer Lifetime Value (LTV)
Customer LTV is calculated as ARPU / Monthly Churn %. Reducing monthly churn from 5% to 2.5% doubles your customer lifetime value without changing product pricing.