Metrics · Monetization · Finance · Quarterly · $ · Updated 2026-07-21

What is Customer Lifetime Value?

Short answer: The total gross margin a business expects to earn from a customer over their entire relationship.

Definition

The total gross margin a business expects to earn from a customer over their entire relationship.

Formula

Average revenue per customer x Gross margin % x Average customer lifespan

How to measure

Multiply average monthly revenue per customer by gross margin percentage, then by the average number of months a customer stays before churning.

Why track it

LTV, compared against CAC, tells a founder how much they can afford to spend acquiring a customer while remaining profitable.

Example

A customer paying $60/month at 70% gross margin who stays 20 months has an LTV of roughly $840.

FAQ

What is Customer Lifetime Value?
The total gross margin a business expects to earn from a customer over their entire relationship.
How do you calculate Customer Lifetime Value?
Average revenue per customer x Gross margin % x Average customer lifespan
Why track Customer Lifetime Value?
LTV, compared against CAC, tells a founder how much they can afford to spend acquiring a customer while remaining profitable.