Customer Lifetime Value (CLV) Calculator - Free CLV & CAC Ratio Tool

💎 Enter Customer Data

Average Order Value ($)

Purchases Per Year

Customer Lifespan (years)

Gross Profit Margin (%)

Customer Acquisition Cost ($)

Customer Lifetime Value

Breakdown

Revenue-Based CLV$0

CLV Formulas

Basic (Revenue-Based) CLV

CLV = Average Order Value × Purchase Frequency × Customer Lifespan

Worked Example

$50 average order, 6 purchases/year, 3-year lifespan:

CLV = 50 × 6 × 3 = $900

Profit-Based CLV

Profit CLV = Revenue CLV × Gross Profit Margin (%)

CLV : CAC Ratio

Ratio = CLV ÷ CAC

3:1 or higher is generally considered healthy

Frequently Asked Questions

The basic formula is CLV = Average Purchase Value × Purchase Frequency × Customer Lifespan. For example, a customer who spends $50 per order, orders 6 times a year, and stays a customer for 3 years has a CLV of $50 × 6 × 3 = $900. A more refined version multiplies by profit margin to get profit-based CLV instead of revenue-based CLV.

A commonly cited healthy benchmark is a 3:1 ratio - meaning a customer is worth at least three times what it costs to acquire them. A ratio below 1:1 means you're losing money on every customer. A ratio much higher than 5:1 can actually suggest you're under-investing in growth and could profitably spend more on acquisition.

CAC (Customer Acquisition Cost) is the total sales and marketing cost divided by the number of new customers acquired in a period. Comparing CAC to CLV tells you whether your growth is sustainable: if it costs more to acquire a customer than that customer will ever generate in value, the business model doesn't work at scale, no matter how much revenue is being generated.

Revenue-based CLV is simpler to calculate and useful for a quick estimate, but profit-based CLV (multiplying by gross profit margin) is more accurate for real financial decisions, since it accounts for the cost of goods sold. A high-revenue, low-margin business can have a much lower true CLV than the raw revenue figure suggests.

Customer Lifetime Value Calculator - Know What a Customer Is Really Worth

Customer Lifetime Value (CLV or LTV) answers a deceptively simple question with major strategic implications: how much total revenue or profit will a typical customer generate over their entire relationship with your business? Understanding CLV changes how much you can reasonably spend to acquire customers, which channels are worth investing in, and whether your business model is fundamentally sustainable.

The formula: CLV = Average Order Value × Purchase Frequency × Customer Lifespan
Quick example: $50 order, 6x/year, 3 years $900 CLV

Why CLV:CAC Ratio Matters More Than CLV Alone

A high CLV means little if it costs even more to acquire each customer. The CLV:CAC ratio - CLV divided by customer acquisition cost - is the metric investors and operators actually watch closely. A ratio of roughly 3:1 is widely considered healthy: customers are worth three times what it costs to win them, leaving room for overhead, product costs, and profit. A ratio near or below 1:1 signals a business that loses money as it grows, regardless of how much revenue it generates.

Ways to Increase CLV

Improve retention: Extending customer lifespan has a direct, compounding effect on CLV - even small retention improvements often outperform acquisition-focused efforts.
Increase purchase frequency: Email marketing, loyalty programs, and subscription models all aim to shorten the gap between purchases.
Raise average order value: Bundling, upsells, and cross-sells increase what each transaction is worth.
Improve margins: Since profit-based CLV depends on margin, cost efficiencies directly increase true customer value, even without changing revenue.

How this calculator works, and where the numbers come from

The Customer Lifetime Value applies the standard formula for this calculation to the values you enter and updates the result as you type. The calculation itself happens in your browser, and the page explains the method so you can check any result by hand.

Please note: Results are estimates based on the numbers you enter, not accounting or financial advice.

Sources and further reading

Last reviewed: October 6, 2026 by the CalcQube Editorial Team. See our editorial policy for how we build and check calculators, or report an error.

💎 Customer Lifetime Value (CLV) Calculator