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fin.biz-ltv Calculator
Calculates Customer Lifetime Value (LTV) from average monthly revenue, gross margin, and monthly churn rate. LTV = ARPU × gross margin / churn — when churn is high, LTV collapses regardless of ARPU.
Inputs
Arpu
Total income generated before any costs are deducted. Profitability depends on how much survives after expenses.
Margin Pct
Profit as a percentage of revenue. Margin % is always lower than markup % — a $5 profit on a $15 selling price is 33% margin but 50% markup.
Churn Pct
Amount per unit of time or per unit quantity. Check the denominator before interpreting.
Results
avg lifetime
The computed duration or time value.
LTV
LTV (customer lifetime value) -- total revenue expected from a customer over their entire relationship. Compare to CAC for unit economics.