Metrics & Performance
LTV
Last updated
Quick Answer
Lifetime Value — the total revenue a business expects to earn from a single customer over the entire duration of their relationship.
Customer Lifetime Value
LTV = ARPA x Gross Margin % x (1 / Churn Rate)
Where
- ARPA
- = Average Revenue Per Account (monthly)
- Gross Margin %
- = Gross margin as a decimal
- Churn Rate
- = Monthly customer churn rate
LTV (Lifetime Value), also called Customer Lifetime Value (CLV or CLTV), is the predicted total revenue a company will generate from a customer from acquisition through churn. It is one of the two most important metrics in any subscription or recurring revenue business — the other being CAC.
Simple LTV formula: LTV = Average Revenue Per Account (ARPA) / Churn Rate
For example, if a SaaS company charges $500/month and has 2% monthly churn, LTV = $500 / 0.02 = $25,000.
A more accurate LTV factors in gross margin: Gross Margin LTV = (ARPA × Gross Margin) / Churn Rate. This represents the actual profit lifetime value rather than just revenue.
The LTV/CAC ratio is the headline efficiency metric: LTV should be at least 3x CAC for a sustainable SaaS business. Best-in-class companies achieve 5–10x.
In Practice
A company with $200/month ARPA and 1% monthly churn has an LTV of $20,000. If it costs $3,000 to acquire a customer (CAC), the LTV/CAC ratio is 6.7x — very strong. A company with 5% monthly churn would have an LTV of only $4,000, making that same $3,000 CAC nearly unworkable.
Why It Matters
LTV is the ceiling on how much you can rationally spend to acquire a customer. It also reveals the health of your retention — high churn destroys LTV and breaks unit economics. Improving LTV through better retention, upsells, or cross-sells is often the highest-ROI growth lever for a mature SaaS business.
VC Beast Take
LTV calculations are frequently gamed. The most common manipulation: using revenue LTV instead of margin LTV (makes the number look 2–3x bigger), and using overly optimistic churn rates based on short measurement windows. Be skeptical of LTV numbers without understanding the underlying churn rate and gross margin assumptions. A '3x LTV/CAC' ratio built on 2% monthly churn and 40% gross margins is very different from one built on 0.5% monthly churn and 80% margins.
Related Concepts
Further Reading
LTV: What Lifetime Value Means in Venture Capital
LTV (Lifetime Value) measures the total revenue a business expects to earn from a single customer over the entire relationship. Here's what it means, how to calculate it correctly, and why the LTV:CAC ratio is the most important unit economics benchmark in SaaS.
50+ Venture Capital Interview Questions by Role (With Sample Answers)
Preparing for a VC interview? Here are 50+ real questions organized by role — Analyst through GP — with sample answer frameworks from people who've been on both sides of the table.
What Happens at a Startup Board Meeting: Agenda, Dynamics, and Preparation
Board meetings are where a startup's most consequential decisions get made — or avoided. Here's what actually happens in the room, who attends, and how to run one well.
CAC: What Customer Acquisition Cost Means in Venture Capital
CAC (Customer Acquisition Cost) is the metric VCs use to assess go-to-market efficiency. Here's what it means, how to calculate it correctly, what good benchmarks look like, and how it interacts with LTV to determine business viability.
How to Calculate LTV: Customer Lifetime Value Formula Explained
LTV tells you how much revenue a customer generates over their entire relationship with your company. Here's the formula, a worked example, and what benchmarks VCs use.
Unit Economics Explained: CAC, LTV, and Payback Period
Everything founders need to know about unit economics. How to calculate CAC, LTV, and payback period, with benchmarks VCs use to evaluate your business.
Comparisons
Tools & Resources
Frequently Asked Questions
What is LTV in venture capital?
LTV (Lifetime Value), also called Customer Lifetime Value (CLV or CLTV), is the predicted total revenue a company will generate from a customer from acquisition through churn. It is one of the two most important metrics in any subscription or recurring revenue business — the other being CAC.
Why is LTV important for startups?
Understanding LTV is critical for founders navigating the fundraising process. It directly impacts deal terms, valuation, and the relationship between founders and investors.
What category does LTV fall under in VC?
LTV falls under the metrics category in venture capital. This area covers concepts related to the quantitative measures used to evaluate fund and company performance.
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