Customer Lifetime Value Calculator (CLV / LTV)
Determine the total net profit a single customer generates over their entire relationship with your business. Calculating Customer Lifetime Value (CLV/LTV) establishes the maximum viable threshold your company can spend on acquiring new customers.
Average dollar amount spent per transaction
Number of purchases made by an average customer annually
Average number of years a customer continues buying
Profit margin percentage remaining after direct product COGS
Net gross profit generated by an individual customer across their relationship
How to Use This Calculator
- Enter your business Average Order Value (AOV) from your sales reporting.
- Enter average purchase frequency per customer per year.
- Input the average customer retention duration in years (or 1 / Annual Churn Rate).
- Enter your gross profit margin percentage to calculate profit-based LTV rather than revenue LTV.
- Compare your LTV against Customer Acquisition Cost (CAC) to maintain a healthy 3:1 ratio.
Formula & Calculation Methodology
Multiplies transaction size by purchase frequency, customer duration, and margin percentage to derive true customer profit.
Worked Example
$85 AOV with 4 purchases/year over a 3-year lifespan at 60% gross margin
Frequently Asked Questions
Why must gross profit margin be included in LTV calculations?↓
Calculating LTV based solely on top-line revenue overstates business value. A customer who spends $1,000 on products with an 80% cost of goods only contributes $200 in gross profit to cover acquisition and overhead.
What is the optimal LTV to CAC ratio?↓
A healthy benchmark for venture-backed and sustainable businesses is an LTV:CAC ratio of 3:1 or higher. An LTV:CAC of 1:1 or less results in insolvency, while an LTV:CAC above 5:1 indicates underinvestment in growth.
How do subscription businesses calculate customer lifespan?↓
In recurring subscription models, customer lifespan is calculated as 1 divided by the customer churn rate. For example, an annual churn rate of 20% implies an average customer lifespan of 5 years.
How can an enterprise increase its customer lifetime value?↓
Enterprises increase LTV by cross-selling complementary products (raising AOV), launching loyalty rewards programs (increasing frequency), and improving customer support to reduce churn (extending lifespan).
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Source Citation & Disclaimer
Informational tool only; not licensed tax, legal, or financial advice.