Marketing · 3 min read
The total profit a customer will deliver across the entire time they do business with you. Not just the first sale.
When a business is figuring out how much to spend to acquire a new customer, it needs to answer one question first: how much will this customer be worth to me, total?
That total is Customer Lifetime Value. CLV.
The basic formula is straightforward:
CLV = Average purchase value × Purchase frequency × Customer lifespan
So, for the coffee shop: a $5 latte, bought 250 times a year, for 4 years = $5,000 in revenue from one customer. Even after deducting the cost of the coffee, the cup, and the barista's time, that's maybe $2,500 in profit. From one person who walked through the door once.
This single number changes how businesses behave. If your CLV is $2,500, you can afford to spend $200 on advertising to acquire a new customer and still come out massively ahead. If you didn't know your CLV, you'd look at that $200 marketing spend versus a $5 first latte and conclude marketing was a disaster.
This is why subscription businesses (Netflix, Spotify, gyms) and high-frequency businesses (coffee shops, hairdressers, grocery stores) obsess over CLV. It's also why customer retention is so much more valuable than acquisition: keeping a happy customer for one more year is worth dramatically more than finding a new one. As the marketing adage goes: it costs 5-7x more to acquire a new customer than to keep an existing one. CLV is the number that makes that math obvious.
Why it matters
Every business decision — what to spend on marketing, who to hire for customer service, whether to offer a loyalty program — gets clearer when you know what one customer is actually worth over time.
See also