Customer Lifetime Value (LTV) Calculator

This customer lifetime value calculator uses average order, purchase frequency, retention and margin to show annual and lifetime revenue and a CAC ceiling.

What it does

The Customer Lifetime Value (LTV) Calculator estimates how much gross profit an average customer generates over the whole time they stay with your business. It turns average order value, purchase frequency, retention, and margin into a single planning number.

Data sources & parameters

This calculator uses standard financial formulas and runs entirely in your browser. It needs no external rate data — your result is computed only from the values you enter above.

We always strive to use the latest data for every variable so our results and reports are as accurate as possible. Even so, errors are possible — you should not rely on this tool or its report alone, and we accept no liability for any decision made based on it.

The formula

LTV = average purchase value × purchases per year × retention years × gross margin %

How it works

The tool multiplies the average purchase value by how often a customer buys each year to get annual revenue, extends that over the retention period to get lifetime revenue, and applies your gross margin to convert revenue into the profit a customer is actually worth.

Where it is used

Setting a sensible ceiling for customer acquisition spend
Comparing the value of different customer segments or plans
Modelling how retention and margin changes affect profitability

Worked example

A customer spends $100.00 per order, buys 4 times a year, and stays for 5 years. That is … of annual revenue and … of lifetime revenue; at a 60% gross margin the customer is worth … in lifetime value.

What the customer lifetime value calculator does

Customer lifetime value, LTV or CLV, is the gross profit an average customer brings in over the whole time they stay with you. Enter the average purchase value, purchases per year, years of retention and gross margin, and the calculator shows annual revenue, lifetime revenue and lifetime value. That figure sets the ceiling on what you can pay to acquire a customer, guides marketing spend and shows which segments deserve most attention.

How lifetime value is calculated

Annual revenue is the average purchase value times purchases per year: a customer spending 100 per order four times a year brings in 400. Lifetime revenue is that figure times the years they stay: 2,000 over five years. Lifetime value applies the gross margin: at 60%, the 2,000 becomes 1,200.

In one line: average purchase value × purchases per year × retention years × gross margin.

Why gross margin matters

Two businesses can earn identical revenue from a customer while making very different profits, because delivering the product costs money. Lifetime value after gross margin shows what is left to cover marketing and overheads, and that, not revenue, is the figure to compare with acquisition cost.

Setting acquisition budgets

If an average customer is worth 1,200 in gross profit, paying 1,000 to acquire one leaves almost nothing for overheads, while paying 200 leaves plenty. Many businesses aim for lifetime value of at least three times acquisition cost, a cushion for customers who leave early, marketing that misfires and fixed costs outside the calculation. When the two figures get too close, growth stops being profitable however fast sales rise.

What changes the result

The result is the product of four inputs, so improving any one raises it, and improving several compounds the effect. Larger orders through bundles, upsells or premium tiers raise every future purchase. More frequent buying, through reminders, subscriptions or a wider range, multiplies annual revenue. Longer retention scales lifetime value directly and is often cheaper to achieve than new customers. A lower cost of delivery or a shift toward higher-margin products raises the profit from every sale. Change one input at a time to see which pays off most.

Reading the results

Lifetime value is built on averages: some customers buy far more and stay for years, others buy once and leave. It describes a typical customer for planning purposes, not any individual. Run a pessimistic case with lower retention and margin and an optimistic one, and plan for the range between them. Purchase frequency, retention and margin change over time, so update the inputs before important budget decisions. Comparing channels this way can also reveal customers who are cheap to acquire but never bring in enough to repay the cost.

This article is general information only and is not financial or business advice.

About This Customer Lifetime Value Calculator

Use this customer lifetime value calculator to get an instant estimate based on the figures you enter. Adjust the inputs above to match your situation, or browse all our calculators to plan your next step.

Frequently asked questions

How does the customer lifetime value calculator work?

It multiplies your average purchase value by how many times a customer buys each year to find annual revenue, extends that across your retention period to get lifetime revenue, and then applies your gross margin so the result reflects profit, not sales. The output is the gross-margin lifetime value of an average customer.

What is a good customer lifetime value?

There is no universal number, because value depends on your costs. The figure that matters is the ratio between lifetime value and what you pay to acquire a customer. A healthy business usually earns several times its acquisition cost back over a customer's life, which leaves room for overheads and profit.

Should I use revenue or margin for LTV?

Use gross margin. Revenue-based lifetime value overstates worth because it ignores the cost of delivering the product or service. Applying gross margin converts sales into the profit a customer actually contributes, which is the number you can safely compare against acquisition spend.

How is LTV different from lifetime revenue?

Lifetime revenue is the total sales a customer generates before any costs. Lifetime value applies your gross margin to that revenue, so it reflects profit. This calculator shows both, so you can see the top-line figure and the profit that remains after the cost of goods.

How does retention affect lifetime value?

Retention is one of the strongest levers. Because lifetime value scales directly with how many years a customer stays, extending average retention lifts the result proportionally. Small improvements in keeping customers often add more value than the same effort spent winning new ones.

Is my data kept private?

Yes. The calculation runs entirely in your browser. Nothing you enter is uploaded, stored, or shared with anyone.

About the author

Written and reviewed by

Taha Kheirandish

Economics student and independent researcher

Taha Kheirandish reads tax codes the way other people read maps — to find out where a system actually leads, not where it claims to go.

He is an economics student, and his work here is comparative by design. A pension deferral bonus in Quebec, a commuting allowance in Germany, a rent-increase ceiling in the Netherlands: each is a decision a government made about how money should move, and each reads differently once you set it beside eight others. He builds and checks these calculators across nine markets from primary sources — the regulation rather than a summary of it, the ministry’s own circular rather than a news item quoting it.

That is the editorial standard of the site as well as his habit. Every rate, threshold and bracket here carries the document it was read from and the date it takes effect, and gets re-checked when the law moves rather than when someone happens to notice.

He is a researcher, not a licensed adviser, and nothing on this site is personal financial advice. It is arithmetic done carefully with its sources shown — so that you can check it, and take it to someone who is.

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