Customer Lifetime Value Calculator
Estimate the total revenue a single customer generates over their entire relationship with your business. Use this to guide acquisition budgets, retention strategies, and pricing decisions.
About this calculator
Customer Lifetime Value (CLV or LTV) quantifies the total revenue a business can expect from a single customer account throughout the business relationship. The standard formula is: CLV = averageOrderValue × purchaseFrequency × customerLifespan. Average Order Value is how much a customer spends per transaction on average. Purchase Frequency is how many times per year they buy. Customer Lifespan is how many years they remain a customer. For example, a subscription box company needs to know CLV to determine how much it can afford to spend acquiring each new customer without losing money. CLV also informs decisions about loyalty programs, customer service investment, and product development priorities. Comparing CLV to Customer Acquisition Cost (CAC) is one of the most important ratios in business health analysis.
How to use
Say you run an online coffee store. Your average order value is $35, customers order about 6 times per year, and they stay customers for an average of 3 years. Plug into the formula: CLV = $35 × 6 × 3 = $630. This means each customer is worth $630 over their lifetime. If your customer acquisition cost (CAC) is $80, your CLV:CAC ratio is 7.9 — well above the healthy benchmark of 3:1. This tells you there's room to invest more in growth or retention programs.
Frequently asked questions
What is the difference between customer lifetime value and customer acquisition cost?
Customer Lifetime Value (CLV) represents the total revenue a customer generates over their entire relationship with your business, while Customer Acquisition Cost (CAC) is what you spend to win that customer in the first place. The CLV:CAC ratio is a critical business health metric — a ratio of 3:1 or higher is generally considered healthy, meaning you earn at least $3 for every $1 spent on acquisition. A ratio below 1:1 means you're losing money on every customer. Tracking both together helps businesses calibrate their marketing spend and growth strategy.
How can a business increase its customer lifetime value?
Businesses can increase CLV by raising any of the three components in the formula: average order value, purchase frequency, or customer lifespan. Upselling and cross-selling strategies boost order value, while loyalty programs and personalized email marketing increase purchase frequency. Exceptional customer service, strong onboarding, and ongoing engagement extend the customer lifespan. Even a modest 10% improvement in each factor compounds to a 33% increase in total CLV, making retention-focused strategies extremely high-leverage.
Why is customer lifetime value important for setting a marketing budget?
CLV sets the ceiling on how much you can rationally spend to acquire a new customer while remaining profitable. Without knowing CLV, businesses often underspend on acquisition and miss growth opportunities, or overspend and erode margins. Most growth frameworks recommend keeping CAC below one-third of CLV (i.e., a 3:1 ratio). CLV also helps prioritize which customer segments deserve the most marketing investment — high-CLV segments justify premium acquisition channels and personalized retention efforts.