Four-Step LTV Calculation Framework
Calculate the profit-adjusted lifetime value of an average customer
- Difficulty
- Easy
- Time to result
- ~days to results
- Steps
- 4
- Confidence
- 99%
The framework calculates customer lifetime value using three inputs: average revenue per user, average customer lifespan, and gross margin percentage. First, divide revenue by the number of customers for a defined period. Next, inspect customer records to estimate how long an average customer continues buying. Then calculate gross margin by subtracting costs from revenue, dividing the result by revenue, and converting it to a percentage. Multiplying the three figures produces a profit-adjusted estimate of the value generated by an average customer. That number becomes a practical basis for acquisition spending, sales forecasting, resource allocation, and retention planning rather than treating every transaction as an isolated sale.
Origin
Extracted from The Jasmine Star Show, where Jasmine Star demonstrates the calculation through Tyrone, a fictional health coach with recurring clients.
Core principles
- 01Measure value across the full customer relationship
- 02Use representative customer data rather than isolated purchases
- 03Include customer lifespan when evaluating revenue
- 04Adjust revenue for the cost of delivering the product or service
- 05Treat the calculated LTV as a baseline for improvement
How to run it
- 1
Calculate average revenue per user
Choose a consistent period and divide total revenue by the number of customers served during that period. This becomes variable A in the equation.
Pro tip Use a period that reflects the normal rhythm of the business rather than an unusually strong launch month.
Watch out Do not mix customer counts and revenue from different periods.
- 2
Determine average customer lifespan
Review customer start and end dates, add the relationship durations, and divide by the number of customers examined. This becomes variable B.
Pro tip If the customer base is too large to review manually, use a representative sample.
Watch out Keep the lifespan unit consistent with the period used for average revenue.
- 3
Find gross margin percentage
Subtract the cost of delivering the product or service from revenue. Divide the gross profit by revenue and multiply by 100 to obtain variable C.
Pro tip Include meaningful delivery costs so the result reflects economic value rather than headline revenue.
Watch out Do not substitute gross revenue for gross profit when evaluating how much value can be reinvested.
- 4
Calculate and record LTV
Multiply average revenue per user by average customer lifespan and gross margin percentage. Record the result as the current LTV baseline.
Pro tip Round the final result for planning, but retain the precise calculation in financial records.
Watch out Treat the result as an estimate that should be updated as prices, costs, and retention change.
In the wild
Tyrone earns $3,000 from 30 clients, producing average revenue of $100 per client. His clients remain for four months, and his $2,000 gross profit on $3,000 of revenue gives him a gross margin of about 66.67%. Multiplying $100 by four months and 66.67% produces an estimated LTV of approximately $267.
→ Tyrone gains a concrete customer-value baseline he can use for reinvestment and growth planning.
Common mistakes
Using revenue without margin
Revenue alone overstates customer value because it ignores the cost of delivering the offer. Apply gross margin to estimate the amount the relationship actually contributes.
Guessing customer lifespan
An unsupported retention estimate can distort the entire calculation. Use sales records or a representative sample of customer histories.
Mixing incompatible periods
Monthly revenue cannot be multiplied directly by a lifespan expressed in years without converting the units. Normalize every time-based input first.
Is it for you?
Best for
It is best for owners who have revenue, customer, cost, and retention data but lack a reliable customer-value baseline.
Not ideal for
It is not ideal for very new businesses without enough customer history to estimate lifespan or representative margins.
From the transcript
“the equation that I want you to write down is a times b times c equals LTV.”
“Step one of the framework is to calculate the average revenue per user.”
“And step number four is to put it all together.”
From the episode
Understanding and Increasing Your Customer LTV (Lifetime Value): Five Strategies to Make More Money From the Same Customers