Customer Lifetime Value Calculator

Customer lifetime value, often shortened to CLV or LTV, estimates the economic value a customer generates over the duration of the relationship. It shifts attention from one transaction to the full stream of revenue, margin, retention, and expansion.

A simple subscription version uses average revenue, gross margin, and churn to estimate how much contribution a customer is expected to produce. More detailed models use cohorts, retention curves, acquisition channels, discount rates, support costs, expansion, contraction, and winback behavior.

Revenue alone can overstate customer value because serving customers has costs. Gross margin adjusts for direct costs of delivery. Contribution margin may go further by including support, payment fees, onboarding, customer success, or infrastructure costs. The right margin definition depends on the decision being made.

A customer segment with high revenue but heavy service cost may be less valuable than a smaller, self-serve segment with strong retention. CLV is useful because it encourages teams to compare customers by economic contribution rather than top-line size alone.

Small retention differences can create large CLV differences. If customers stay longer, revenue and margin accumulate over more periods, and acquisition cost is spread across a longer relationship. This is why churn reduction can be as valuable as acquisition growth.

Average churn formulas are convenient, but cohorts often tell the better story. Customers acquired through different channels, during different product eras, or into different plans may retain differently. Blending them can hide both problems and opportunities.

CLV is often paired with customer acquisition cost, or CAC. A business wants the value of acquired customers to exceed the cost of acquiring them by enough to support overhead and profit. But ratios can be gamed if payback time, cash constraints, and retention uncertainty are ignored.

The best use of CLV is comparative and directional. It helps prioritize segments, channels, pricing, and retention work. It should be revisited as behavior changes, not treated as a permanent truth about customers.