What Is LTV? Customer Lifetime Value for Ecommerce

What is LTV? LTV, also written CLV or CLTV, is customer lifetime value: how much a typical customer is worth to your brand across every order they place, not just the first one. It is the number that tells you how much you can afford to spend acquiring a customer.

For DTC brands, LTV turns a short-term ad question into a long-term business question. A campaign that looks unprofitable on the first order may be very profitable once repeat purchases are counted, and a campaign that looks great may be buying one-time customers who never come back.

What is LTV in ecommerce?

LTV, or customer lifetime value, is the total value a customer brings to your store over their relationship with you. In ecommerce it is usually average order value multiplied by the number of orders per customer over a set window, ideally adjusted for gross margin so it reflects profit rather than revenue.

LTV (Customer Lifetime Value): LTV is the total value a customer brings to your store across all their orders over a defined period, ideally measured on gross margin.

Formula: LTV = average order value x orders per customer (x gross margin for profit LTV)

LTV formula and how to calculate it

The simple ecommerce formula is LTV equals average order value multiplied by average number of orders per customer over a time window. To get a profit view, multiply that by gross margin. Always state the window, such as 12 months, because "lifetime" is otherwise impossible to measure for a young brand.

Worked example (illustrative numbers): customers spend $60 per order on average and place 2.5 orders in their first 12 months. Revenue LTV is $60 multiplied by 2.5, which equals $150. With a 65% gross margin, gross margin LTV is $150 multiplied by 0.65, which equals $97.50.

If CAC is $40, the LTV to CAC ratio on a gross margin basis is $97.50 divided by $40, about 2.4. That means each customer returns roughly 2.4 times their acquisition cost in gross profit over a year.

What a healthy LTV depends on

LTV is only meaningful next to CAC and margin. A $300 LTV is weak if it costs $250 to acquire the customer, and a $90 LTV can be excellent if CAC is $25.

The most honest way to judge LTV is by cohort. Group customers by the month of their first order and track how much gross profit each cohort produces at 30, 90, 180 and 365 days. If newer cohorts reach the same value faster than older ones, retention is improving. If they lag, something in acquisition, product or post-purchase experience has changed. These are the main factors behind the differences you will see:

Product type: consumables like supplements and skincare repeat naturally; durable goods rarely do.
Gross margin: two brands with the same revenue LTV can have very different profit LTV.
Time window: a 6 month LTV and a 24 month LTV answer different planning questions.
Acquisition source: heavy discount offers can bring in customers with lower repeat rates.
Cohort quality: customers acquired during BFCM often behave differently from full-price buyers.

How to improve LTV

LTV grows through three levers: bigger orders, more orders and longer relationships. Average order value rises with bundles, tiered offers and post-purchase upsells. Order frequency rises with well-timed email and SMS flows, especially replenishment reminders for consumables and a strong post-purchase sequence that teaches customers how to get results from the product.

Retention also depends on the first experience. Fast shipping, clear expectations and a product that delivers on the ad's promise matter more than any discount. Subscriptions can lift LTV for consumables, but only if the product is used on a predictable schedule. Track cohorts monthly so you can see which changes actually move repeat behaviour.

Common LTV mistakes

Using revenue LTV against CAC, which overstates how much you can afford to spend.
Projecting lifetime value from a few strong months without cohort data to support it.
Mixing all customers together instead of tracking cohorts by month or acquisition channel.
Ignoring refunds, returns and discount costs in the calculation.
Spending to a high LTV target when cash flow cannot wait for repeat orders.

Related metrics

LTV pairs with CAC to form the LTV to CAC ratio. Average order value is one of its inputs, and contribution margin turns it into profit. Repeat purchase rate and time between orders explain why LTV changes. Use the LTV calculator to model your own numbers across different time windows.

Proof from real accounts

$1.6M Revenue in one year: DTC brand scaled with paid social and retention (see the proof)
$137,620 Revenue in one month: 3.89x ROAS, supplement brand (see the proof)
12+ Years in ecommerce: Agency-wide experience across 30+ niches

Frequently asked questions

What is the difference between LTV and CLV?

They mean the same thing. LTV, CLV and CLTV are all abbreviations for customer lifetime value. Some teams use CLV for a more detailed predictive model and LTV for a simple historical calculation, but there is no strict rule. What matters is that you define the time window and whether the figure is based on revenue or gross margin.

How do I calculate LTV for a new brand?

Use a short window you can actually measure, such as 90 days or 6 months, and track it by monthly cohort. Multiply average order value by orders per customer in that window, then apply gross margin. As more data comes in, extend the window. Avoid projecting a multi-year value from a few months of history.

Should LTV use revenue or profit?

Use gross margin or contribution margin when you compare LTV with CAC, because acquisition is paid for with profit, not revenue. Revenue LTV is fine for reporting growth, but it can make an expensive acquisition strategy look safe. Many DTC brands track both and use the margin version for budget decisions.

Which DTC products have the highest LTV?

Products that are used up and reordered, such as supplements, skincare, coffee and pet food, usually support higher LTV because customers come back on a schedule. Durable products depend more on cross-selling and new launches. Your own cohort data is the only reliable guide, since two brands in the same category can retain very differently.

How do email and SMS affect LTV?

Email and SMS flows are the main way most DTC brands drive repeat orders without paying for new ads. Welcome, post-purchase, replenishment and win-back flows all move customers toward their next order. Because these messages cost little to send, improving them raises LTV and lets you afford a higher CAC on paid channels.

Find out what your customers are really worth

In a Brand Growth Audit we look at your cohorts, retention flows and acquisition costs together so your ad budget matches real lifetime value. Book a Brand Growth Audit.