Customer Lifetime Value Calculator

Estimate how much gross profit an average customer brings over their whole relationship with your business, and how that compares to what you spend to acquire them. Enter your numbers and press Calculate.

Written by TopicDrill Editorial Team·Updated June 2026

Share this calculator

Where the lifetime value goes

Net profit Acquisition cost

$780.00

$120.00

Gross lifetime value $900.00, of which $120.00 is spent acquiring the customer.

How customer lifetime value works

Customer lifetime value, often shortened to CLV or LTV, is the total gross profit you expect from a typical customer across the whole time they buy from you. It turns scattered transactions into a single number you can plan around, from marketing budgets to retention programs.

The model here builds up in stages. Average order value times purchase frequency gives annual revenue. Your gross margin converts that into annual profit. Multiply by the average customer lifespan and you have gross lifetime value. Subtract the cost to acquire the customer to see the net figure that actually lands in your business.

A quick example

Suppose a customer spends $75 an order, buys four times a year at a 60% margin, and stays for five years. That is $300 a year in revenue, $180 in annual profit, and $900 of gross lifetime value. If acquisition cost is $120, net value is $780 and the CLV to CAC ratio is a healthy 7.5 to 1.

Things to keep in mind

CLV is an estimate built on averages, so revisit it as your data improves. Watch the CLV to CAC ratio when planning spend, and pair this with our other free calculators to model margins and growth together.

Frequently asked questions

How is customer lifetime value calculated?

A common method multiplies average order value by purchase frequency to get annual revenue, applies the gross margin to get annual profit, then multiplies by the average customer lifespan in years. This calculator follows that approach and then subtracts acquisition cost to show net value.

What is a good CLV to CAC ratio?

Many businesses aim for a CLV to CAC ratio of about 3 to 1, meaning a customer is worth three times what it costs to acquire them. A ratio near 1 to 1 suggests you are spending too much to win customers, while a very high ratio can mean you are under investing in growth.

Should I use revenue or profit for CLV?

Gross profit is the more useful figure because it reflects the money left after the cost of goods sold. Using revenue alone overstates a customer's worth, especially for low margin products. This tool applies your gross margin so the result is profit based.

How can I increase customer lifetime value?

Raise average order value, encourage repeat purchases, improve retention to extend the lifespan, and protect margins. Even small gains in any of these inputs compound across the whole customer base.

Related guides

View all →

Money Management ETF vs Mutual Fund: Which Is Better for Beginners?

ETF vs Mutual Fund: Which Is Better for Beginners? Explore costs, tax implications, and trading flexibility for informed investment decisions.

MAJun 11, 2026Read More →

Business Finance How Much Will $1,000 Invested Today Be Worth in 10 Years?

Invest $1,000 today and the answer to "what's it worth in 10 years?" ranges from about $1,040 in a basic savings account to roughly $2,594 at the stock market's long-run average. Here's the math behind every scenario — plus how inflation, fees and taxes change the real number.

MAJun 9, 2026Read More →

Business Finance How Much Do You Need to Retire Comfortably? (2026 Guide)

There's no single magic number for retirement — but there are proven formulas that get you close. Using the 4% rule, most people need roughly 25 times their annual spending invested. Here's how to find your personal target, factoring in Social Security, healthcare, inflation and lifestyle.