Customer Lifetime Value (LTV) Calculator

(ARPU × gross margin) ÷ monthly churn rate = LTV.

Avg revenue per user / month (USD)

Gross margin %

Monthly churn rate %

CAC (USD, optional)

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Enter inputs to calculate

About this calculator

Free LTV calculator: enter average revenue per user, gross margin, and your monthly churn rate to compute Customer Lifetime Value plus the LTV-to-CAC ratio if you also paste in CAC. Built using the standard SaaS formula (ARPU × gross margin) ÷ monthly churn rate, with guardrails that warn when churn is unrealistically low. Ideal for founders pricing tiers, evaluating cohort retention, or writing the unit economics slide of a pitch deck.

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Want this metric in context, not in isolation?

The Unbuilt Lab app runs your idea through a 6-document Blueprint Pack — and the Gtm doc covers Customer Lifetime Value against your specific market data, competitors, and unit-economics targets. Not a generic calculator: tailored analysis.