What is LTV
Full name: Lifetime Value
Also known as: customer lifetime value, lifetime value
Formula
LTV build-up
How value accumulates over the customer lifetime and flattens as churn takes effect. Gold is the total.
Definition
The total revenue or profit a business expects to earn from a single customer throughout their entire relationship with the company. It projects net profit per customer over the full duration of that relationship.
A projection of the net profit contributed by an individual customer over the entire future duration of their relationship with the business.
Why it matters
LTV helps businesses decide how much they can afford to spend on acquiring new customers. Comparing LTV to CAC shows whether a customer relationship is profitable over time. However, LTV must be updated regularly because changes in competition, pricing, and customer retention will alter the lifetime value.
Directly related: CAC, Gross margin, Cash flow.
Formula
LTV = Average Revenue Per User * Gross Margin Percentage / Churn Rate
Improvement tips
- Calculate LTV based on gross profit contribution rather than raw revenue to get an accurate view of customer value.
- Segment LTV by acquisition channel and customer cohort to identify which groups are truly the most profitable.
- Focus on improving customer retention and offering relevant upsells to increase the average LTV.
Common mistakes
- Using historical customer data from years ago to calculate LTV for customers being acquired under different market conditions today.
- Confusing customer revenue with customer profit when calculating LTV, leading to overspending on acquisition.
- Assuming customer churn rates will remain constant forever instead of adjusting for seasonal variations or increased competition.
Related terms
CAC
The total amount of money a business spends to acquire a single new customer, including marketing, sales, and overhead costs. It equals total acquisition spend divided by new customers gained.
Gross margin
The percentage of revenue a business retains after subtracting the direct costs of producing its goods or services. It shows the ratio of gross profit to net sales, per revenue dollar.
Cash flow
The net amount of cash and cash equivalents being transferred into and out of a business during a specific period. It shows the net change in the company's cash position over a given operating interval.
Retention
The percentage of users who continue to use a product or service over a specific period. It is calculated as returning users divided by the initial cohort.
Net Profit
The actual profit of a business after all operating expenses, interest, taxes, and direct costs are subtracted from total revenue. It deducts COGS, interest, depreciation, and taxes.
LTV:CAC
A ratio that compares the lifetime value of a customer to the cost of acquiring that customer. It is calculated by dividing LTV by CAC to assess sales and marketing productivity.
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Quick check
Why should LTV be calculated using gross profit instead of gross revenue?
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Frequently asked questions
Do I need to understand LTV before starting a business?
When does LTV first become relevant for a new business?
How can I estimate LTV for a business that has no customers yet?
Is LTV relevant for a business that only sells one-time products?
Why does LTV matter for a business already running?
What goes wrong when a business ignores customer LTV?
How do I start tracking LTV without stopping my daily work?
How can I increase my customer LTV if my sales are stagnant?
What does LTV actually mean in plain words?
Is calculating LTV complicated or risky?
Do I need an accountant or special software to calculate LTV?
Should I calculate LTV based on revenue or profit?
Sources: Glossary Pilot Personalization Interview, Alex, 2026-07-16
Last reviewed: 2026-07-16