What is Customer Lifetime Value?
Definition + Examples
Definition
Customer Lifetime Value is the total revenue (or, more rigorously, gross profit) a business can expect from a single customer over the duration of their relationship. It's calculated as average order value × purchase frequency × average customer lifespan — or, more accurately, by tracking actual cohort revenue over time. LTV is fundamental to deciding how much you can profitably spend to acquire a customer and to identifying which customer segments are worth investing in retaining.
Why it matters for small businesses
LTV is what makes a marketing budget defensible. If a customer is worth $500 over their lifetime and you can acquire them for $80, you have a business; if a customer is worth $50 and you spend $80 to acquire them, you don't. For small businesses, LTV is also the lens that justifies spending on retention. A loyalty program that increases purchase frequency by 20% can lift LTV more than any acquisition campaign and often costs less to run.
Examples
DTC LTV by cohort
A DTC brand finds first-purchase LTV of $42, while customers who make a second purchase have an LTV of $190. They invest heavily in second-purchase email automation, lifting blended LTV 31% in a year.
Salon LTV math
A salon's average customer visits every 6 weeks at $85, for 2.4 years on average. LTV is about $1,750. The owner is willing to spend up to $200 to acquire a new client and still have a 3:1 LTV:CAC ratio.
SaaS expansion LTV
A SaaS company finds 40% of customers expand to a higher tier within 18 months. Expansion revenue adds 60% to LTV, fundamentally changing the CAC budget the company can afford.
How to use customer lifetime value in your marketing
- 01Use gross margin LTV, not just revenue LTV. Margin is what funds growth.
- 02Track LTV by cohort. Newer cohorts often have different LTV characteristics than older ones.
- 03Build LTV models that include expansion, referrals, and retention separately — each is a different lever.
- 04Use LTV to set max-allowable CAC by channel and segment.
- 05Prioritize retention investments that lift LTV; they usually have higher ROI than equivalent acquisition spend.
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Start freeRelated terms
Customer Acquisition Cost is the total amount a business spends to acquire a single new customer, calculated by dividing the sum of all marketing and sales costs over a period by the number of new customers acquired in that same period.
A customer loyalty program is a structured rewards system that incentivizes repeat business from existing customers.
Cohort analysis is the practice of grouping customers by a shared characteristic — typically their acquisition date or acquisition channel — and tracking that group's behavior over time.
Net Promoter Score is a customer satisfaction metric calculated from a single survey question: 'On a scale of 0–10, how likely are you to recommend us to a friend or colleague?' Respondents scoring 9–10 are 'promoters,' 7–8 are 'passives,' and 0–6 are 'detractors.