Free Financial Modeling Tool

SaaS MRR, LTV & Churn Health Calculator

Simulate your subscription business economics. Analyze Customer Lifetime Value (LTV), CAC Payback, and annual revenue trajectories in real time.

Subscription Baseline Metrics

Active Paid Subscribers 250

10 1,000 5,000

Average Monthly Revenue Per User (ARPU) $49.00

$5/mo $250/mo $1,000/mo

Monthly Customer Churn Rate 3.5%

0.5% (Elite) 3.5% (Good B2B) 15% (High Churn)

Customer Acquisition Cost (CAC) $180

$20 $500 $2,000

LTV : CAC Ratio > 3.0x

Every marketing dollar generates $3+ in lifetime margin. Safe to scale aggressive ad spend.

CAC Payback < 12 Mo

Capital is recovered within 12 months, minimizing cash burn and runway risk.

Monthly Churn < 5%

B2B SaaS benchmarks target under 3-5% monthly churn to avoid pouring into a leaky bucket.

Monthly Recurring Revenue

Annualized: $147,000 ARR

Customer Lifetime Value (LTV)

$1,400.00

Avg Customer Lifespan: ~28.6 months

LTV : CAC Health Ratio 7.8x (Healthy)

CAC Payback Period 3.7 months

Monthly Revenue Lost to Churn -$428.75/mo