How do you calculate customer lifetime value for an ecommerce brand?

Why does customer lifetime value matter?

Because it sets the ceiling on what you can pay for a customer. In the worked example below, a brand earns £33 of margin from a new customer in their first year. If it pays £30 to acquire that customer, it breaks even in year one; at £40 it is still paying off that customer in year two. Everboost reads CLV as that ceiling: the more each customer is worth, the more you can afford to spend winning the next one.

Calculate your customer lifetime value

Use your own numbers from Shopify, your analytics tool and your subscription app. Every field starts empty, and the notes under each one show where the number usually comes from.

The calculator assumes repeat customers who keep buying in later years order as often as they did in year one, and ignores customers whose first reorder comes after month 12. The first assumption can push the 3-year figure up and the second pulls it down, so treat it as a rough guide. In subscription mode it uses one cancellation rate for every month after the second order. It is a planning estimate; your own cohort data, where you have it, is the better answer.

What is customer lifetime value?

Customer lifetime value is the margin a customer brings in over their relationship with your brand. For a direct-to-consumer brand the useful version is the margin a customer brings in over a fixed period, usually 12 or 36 months from their first order, after product, shipping and payment costs. That is the money available to pay for acquiring the next customer, and in Everboost’s work it is the number that connects retention to the acquisition budget.

How do you calculate customer lifetime value?

For a brand where customers buy one order at a time:

CLV = average order value x orders per customer in the period x margin

Orders per customer in the period is one first order plus the repeat orders new customers place. Worked example, as of November 2026, for a brand with a £40 average order and a 60% margin after product, shipping and payment costs:

Step	Calculation	Result
Share of new customers who reorder within 12 months	from a cohort at least 12 months old	25%
Extra orders each repeat customer places	from the same cohort	1.5
Orders per new customer in 12 months	1 + (25% x 1.5)	1.375
12-month revenue per customer	£40 x 1.375	£55
12-month CLV	£55 x 60%	£33
Share of CLV from repeat orders	0.375 / 1.375	27%

If half of those repeat customers keep buying the next year at the same 2.5 orders a year, and half of those the year after, 3-year CLV rises to about £44.

Everboost’s method is to measure reorder share and extra orders from customers whose first order was 12 to 24 months ago, so every one of them has had a full year to come back. Using all customers, including those who only bought last month, makes the reorder share look lower than it is.

How do you calculate CLV for a subscription brand?

Use the share of subscribers who cancel. Each month the expected number still active falls, so expected orders add up quickly at first and then slowly. For a £30 monthly subscription at a 60% margin where 8% of subscribers cancel each month:

Period	Expected orders per new subscriber	CLV on margin
First 12 months, 8% a month from the start	about 7.9	about £142
First 36 months, 8% a month from the start	about 11.9	about £214
First 12 months, 25% cancel before the second order, then 8% a month	about 6.6	about £119
First 36 months, 25% cancel before the second order, then 8% a month	about 9.9	about £178

Two things change the picture. First, new subscribers cancel faster than the base as a whole, so a whole-base monthly rate applied from day one overstates CLV; the calculator’s optional early cancellation field corrects for that. Second, in the worked example, cutting monthly cancellations from 8% to 7.2% adds about 4% to 12-month CLV and about 9% over three years, with no change to price or acquisition, and the gap widens the longer subscribers stay. Everboost treats early cancellations as one of the first things worth checking on a subscription account; our DTC subscription churn benchmarks show what monthly cancellation rates look like across brands.

Why do many CLV formulas overstate it?

Three habits make lifetime value look bigger than the money a brand will actually see:

1. Using revenue instead of margin. Revenue CLV includes product cost, shipping and payment fees. Compared with acquisition cost, it flatters every customer.
2. Guessing a customer lifespan. The classic formula multiplies purchase frequency by an assumed lifespan of several years. BS&Co’s 2026 study found 81.2% of DTC customers bought only once within 365 days, so a lifespan applied to everyone overstates the average.
3. Using the average customer. A small group of loyal customers lifts the average. The typical customer, the one-time buyer, is worth far less.

The calculator avoids all three: it works on margin, over fixed 12-month and 3-year periods, and builds the number from the share of customers who actually reorder. Everboost uses this version because the result is a number acquisition spend can be planned against, even when it is lower than the figure a brand has been using.

What is a good CLV to CAC ratio?

A ratio of 3:1 is the most widely quoted rule of thumb. It comes from subscription software, where investor David Skok popularised it, and we have not found a reliable published benchmark for DTC brands. Two questions matter more than the ratio itself:

• How much of acquisition cost does the first order cover? If the first order’s margin covers it, every repeat order adds margin the brand has already paid to win. If it covers half, the brand is waiting on a reorder to get the other half back.
• How quickly is the rest paid back? A 3:1 ratio over three years can still strain cash flow if most of that value arrives in years two and three.

The calculator answers the first directly, and the gap between its 12-month and 3-year ratios shows the second. Everboost’s view, as of November 2026, is that 12-month CLV is the safer number to plan acquisition around, because it is the money a brand can count on.

What is a good customer lifetime value?

There is no meaningful universal figure. CLV depends on price point, margin and how quickly the product is used up, so a £200 skincare kit and a £25 supplement refill will never compare. A good CLV sits comfortably above your acquisition cost and rises cohort on cohort.

The closest published benchmarks are for the repeat rate that drives it, and they measure different things: Bluecore put the average repeat purchase rate across more than 100 retailers at 16.5% for 2023, and BS&Co’s 2026 analysis of 156,110 DTC customers found 18.8% had two or more orders in a 365-day lookback, with consumables such as supplements typically at 30 to 40%. Our guide to a good repeat purchase rate explains the difference. Everboost compares a brand’s CLV with its own earlier cohorts rather than with another brand’s number.

How do you increase customer lifetime value?

Work through the parts of the formula, starting where your own numbers show the most room:

1. More first-time buyers placing a second order. Usually the most room to move, because the share is low and can rise by points, not fractions: in the worked example, taking it from 25% to 35% adds £3.60 to 12-month CLV, more than a 10% higher order value would (£3.30). A post-purchase journey timed to when the product runs out is a common starting point.
2. Fewer early subscription cancellations. A cancellation flow that offers to skip, pause or swap keeps subscribers who only needed a break.
3. More orders from repeat customers. Replenishment timing and a reason to try a second product.
4. Order value. Bundles and thresholds help, as long as they do not cost you the reorder.

At VEDIC LAB, 180-day revenue per new customer rose 26% between customers acquired in autumn 2024 and those acquired from April to October 2025, part of it from repeat orders and part from first-order value; the VEDIC LAB case study shows how Everboost approached it. To estimate how much more revenue your existing customers could bring in, try our retention calculator. If you would like a retention agency to work out which of these levers is worth most for your brand, book an intro call.