What is customer lifetime value?
Also known as: CLV, CLTV, LTV
Customer lifetime value (CLV) is the total gross profit a business expects to earn from a customer over the entire course of the relationship. It is used to decide how much can profitably be spent acquiring and retaining customers.
Formula
How to calculate customer lifetime value
CLV = (Average revenue per account × Gross margin %) ÷ Customer churn rate- Average revenue per account
- ARPA for the period, usually monthly or annual
- Gross margin %
- Revenue minus the cost of delivering the service, as a percentage
- Customer churn rate
- Churn for the same period as the revenue figure
Worked example
ARPA is $1,000/month, gross margin is 80%, monthly churn is 2%. CLV = ($1,000 × 0.80) ÷ 0.02 = $40,000.
Benchmarks
Typical customer lifetime value ranges
Commonly reported ranges for B2B SaaS. Treat these as orientation — your own segment and contract structure matter more than any cross-industry figure.
| Segment | Typical range |
|---|---|
| Healthy LTV:CAC ratio | 3:1 or better |
| Under-investing in growthYou could likely afford to spend more on acquisition | Above 5:1 |
| UnsustainableEach customer costs more to acquire than they return | Below 1:1 |
In practice
What you need to know about customer lifetime value
Always use gross margin, not revenue
A frequent error is calculating CLV from revenue rather than gross profit. If it costs you 30 cents to deliver a dollar of service, a revenue-based CLV overstates value by roughly 43% and will lead you to overspend on acquisition. Subtract hosting, support, and delivery costs first.
The formula assumes constant churn
Dividing by a single churn rate assumes churn is the same in year one and year five. In reality churn usually declines with tenure as customers embed the product. That makes the simple formula conservative for products with strong retention; for a more accurate figure you need cohort-based projection rather than a single divisor.
CLV with expansion
The simple formula ignores expansion entirely. For businesses with NRR above 100%, CLV is theoretically unbounded because the cohort grows faster than it decays. In practice, cap the projection at a defensible horizon — three to five years is common — rather than reporting an infinite value.
How to improve it
Improving customer lifetime value
Reduce churn before raising prices
Because churn sits in the denominator, it has outsized leverage. Halving churn doubles CLV; a 10% price increase raises it by 10%. Retention is usually the higher-return investment.
Calculate CLV by segment
A blended CLV can justify acquisition spend that is profitable on average but loses money on the segment you are actually buying. Segment-level CLV changes channel decisions.
FAQ
Customer lifetime value questions, answered
How do you calculate customer lifetime value?+
The standard formula is CLV = (average revenue per account × gross margin %) ÷ churn rate, using the same time period for revenue and churn. Using gross margin rather than raw revenue is essential — a revenue-based figure materially overstates value and leads to overspending on acquisition.
What is a good LTV to CAC ratio?+
3:1 is the widely used benchmark, meaning each customer returns three times what they cost to acquire. Below 1:1 the business loses money on every customer. Above 5:1 often indicates under-investment in growth — you could likely spend more on acquisition and remain profitable.
What is the difference between CLV, CLTV, and LTV?+
They are the same metric under different abbreviations. CLV and CLTV are more common in customer success and marketing contexts; LTV is more common in finance and venture discussions, usually paired with CAC.
Related terms
Keep reading
Churn rate
Churn rate is the percentage of customers who stop paying for a product during a given period. It is calculated by dividing the number of customers lost during the period by the number of customers at the start of that period.
Customer acquisition cost
Customer acquisition cost (CAC) is the total sales and marketing expense required to acquire one new customer over a given period. It is used alongside customer lifetime value to judge whether growth is economically sustainable.
Net revenue retention
Net revenue retention (NRR) is the percentage of recurring revenue retained from existing customers over a period, including expansion, contraction, and churn, but excluding new customer revenue. NRR above 100% means existing customers grew enough to more than offset all losses.
Customer retention rate
Customer retention rate is the percentage of customers you keep over a given period, excluding new customers acquired during that period. It is the complement of customer churn rate.
Expansion revenue
Expansion revenue is additional recurring revenue generated from existing customers through upsells, cross-sells, seat additions, or tier upgrades. It is the component of net revenue retention that allows NRR to exceed 100%.
Your next account move is already in the signals
Know the metric. Know why it moved.
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