What is Customer Lifetime Value (CLV)?
Customer lifetime value estimates how much revenue - or, better, gross profit - a customer brings over their time with your store. The simple version multiplies average order value, purchase frequency and expected lifespan.
Also known as: LTV, Lifetime value
Key takeaways
- Simple formula: CLV = AOV × purchases per year × expected years as a customer.
- Multiply by gross margin to get profit-based CLV, which is what you compare with acquisition cost.
- Calculate it per segment or acquisition channel - the store-wide average hides your best customers.
- Common mistake: assuming every customer will repeat when most one-time buyers never return.
- Formula
- CLV = AOV × Purchase frequency × Customer lifespan
- Benchmark
- Judge CLV against CAC: a CLV of at least three times CAC is a common rule of thumb for sustainable acquisition.
Customer lifetime value (CLV, often shortened to LTV) is the total a customer is worth to your store over the whole relationship - not just their first order, but every order after it. It is the number that tells you how much you can afford to spend to win a customer and how much effort it is worth putting into keeping them.
Most store reports focus on this month's sales. CLV shifts the question from "what did we sell?" to "what are our customers worth?", which is where long-term growth decisions should start.
What Is Customer Lifetime Value?
CLV estimates how much revenue - or, better, gross profit - a customer brings your store over their time with you. A customer who buys once for $40 and never returns has a CLV of $40. A customer who buys four times a year for three years is worth many times that, even if each order is smaller.
The simple version multiplies three things you can already measure: how much customers spend per order, how often they order, and how long they keep ordering.
🧒 Explained simply One kid buys a single cup of lemonade for $1 and never comes back. Another kid buys a cup every Saturday all summer - twelve Saturdays, $12. Both were "one customer", but the second one is worth twelve times more. Customer lifetime value is how much each kid is worth to your stand over the whole summer, not just on the day you first met them.
How to Calculate Customer Lifetime Value
CLV = AOV × Purchase frequency × Customer lifespan
Where AOV is average order value, purchase frequency is orders per customer per year, and customer lifespan is the expected number of years a customer keeps buying.
Example: Say a store has an AOV of $50, customers order 3 times a year on average, and a typical customer keeps buying for 2 years.
CLV = $50 × 3 × 2 = $300
Profit-based CLV
Revenue-based CLV flatters you, because it ignores what the products cost. Multiply by gross margin to get profit-based CLV:
Profit-based CLV = CLV × Gross margin
If the store above runs a 40% gross margin:
$300 × 0.40 = $120
That $120 is the figure to compare with your customer acquisition cost.
Some things to watch:
- Use net sales for AOV - after discounts and refunds, excluding shipping and tax.
- Lifespan is an estimate. For a young store, you may not have enough history. Start with a conservative assumption and update it as cohorts age.
- Historical vs predicted CLV. Historical CLV adds up what customers have actually spent so far. Predicted CLV estimates what they will spend. Historical is more reliable; predicted is more useful for planning.
Why Customer Lifetime Value Matters
It sets your acquisition budget. Knowing what a customer is worth tells you how much you can afford to pay to acquire one. Without CLV, you are guessing at your CAC ceiling.
It shows which customers to focus on. CLV by segment or acquisition channel reveals that some groups are worth far more than others. The store-wide average hides your best customers.
It rewards retention, not just acquisition. Purchase frequency and lifespan drive CLV as much as order value does. That makes the second and third order as important as the first.
What Is a Good Customer Lifetime Value?
There is no good CLV on its own - a $100 CLV is excellent for one store and disappointing for another. Judge CLV against CAC instead.
A CLV of at least three times CAC is a common rule of thumb for sustainable acquisition. Treat it as a guide, use profit-based CLV for the comparison, and watch how CLV changes for each new cohort of customers.
How to Increase Customer Lifetime Value
1. Win the second order
The jump from one order to two is the hardest step for most stores. A well-timed post-purchase email sequence, a great unboxing and a clear reason to come back matter more than anything that happens later.
2. Time reminders to the repurchase cycle
If customers usually reorder after about six weeks, remind them just before then. Replenishment reminders work especially well for consumables.
3. Raise average order value
Bundles, cross-sells and free-shipping thresholds increase what each order is worth, which lifts CLV on every purchase.
4. Reward your best customers
Loyalty perks, early access to new products and personal thank-yous keep high-value customers buying. They are often cheaper than winning new customers to replace them.
5. Win back customers who are slipping away
Customers who have gone quiet longer than usual are at risk. A targeted win-back message reaches them before they are gone for good.
How to Track Customer Lifetime Value
Chartsy for Ecommerce connects to your BigCommerce store with read-only access and syncs orders, products and customers hourly. It calculates lifetime revenue per customer straight from their order history, and you can break it down by month, product, category or customer segment. Repeat customers and the monthly Loyalists, Promising, At-Risk and Lost segments show who is worth the most and who is slipping away.
- "Show lifetime revenue for my top 20 customers"
- "How many repeat customers did we have each month this year?"
- "Which customers are in the At-Risk segment this month?"
Try Chartsy for Ecommerce free for 14 days →
CLV in Chartsy
Chartsy calculates this from your synced store orders automatically, and you can break it down by month, product or category. Lifetime revenue per customer comes straight from their order history, and repeat customers and segments show who is worth the most.
Frequently asked questions
What is the difference between CLV and LTV?
They are the same metric under two names. Customer lifetime value (CLV) and lifetime value (LTV) both describe the total a customer is worth over their relationship with your store. Use whichever term your team prefers, as long as everyone uses the same formula.
Should CLV be based on revenue or profit?
Profit is better for decisions. Revenue-based CLV ignores the cost of the goods, so it overstates what you can afford to spend on acquisition. Multiply revenue-based CLV by your gross margin before comparing it with CAC.
How do I calculate CLV for a new store without much history?
Start with what you have: AOV, the repeat rate among your earliest customers and a conservative lifespan assumption. Recalculate every few months as cohorts age. Avoid assuming every customer will repeat, because most one-time buyers never return.
What is a good CLV to CAC ratio?
A CLV of at least three times CAC is a common rule of thumb. What is affordable for your store depends on your margin, cash position and how quickly customers repay their acquisition cost.
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About the author
Written by
Chartsy TeamAnalytics team at Chartsy
The Chartsy Team writes guides, product updates, and resources to help SaaS and eCommerce founders make sense of their metrics, without SQL or spreadsheets.
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