LLM Economics

LTV Calculator (with LTV:CAC)

Calculate customer lifetime value from ARPU, gross margin and churn, then check your LTV:CAC ratio against the healthy 3:1 benchmark.

Inputs

Customer LTV
$800.00
Lower CAC or raise LTV
Your LTV:CAC is 2.7:1 (warning). Reducing CAC to $266.67 reaches the healthy 3:1 ratio.
$33.33
saved / year (11.1%)
LTV:CAC
2.7 : 1
Avg. lifespan
20.0 mo
Gross margin
80.0%
Health
warning

Cost breakdown

ItemMonthlyYearly
LTV$40.00$800.00
CAC$300.00$300.00

Comparison

OptionMonthlyYearly
Current CACLTV:CAC 2.7current$300.00$800.00
Target CAC (3:1)Healthycheapest$266.67$800.00

Data updated 2026-06-30 · ChartMogul SaaS Benchmarks chartmogul.com/reports/saas-benchmarks/ · Bessemer Cloud Index www.bvp.com/atlas/state-of-the-cloud · David Skok LTV:CAC standard www.forentrepreneurs.com/saas-metrics/

Industry Benchmark

Your LTV:CAC vs. healthy 3:1Industry avg: 3 : 1
You are at the 44th percentile

Data updated 2026-06-30 · ChartMogul SaaS Benchmarks chartmogul.com/reports/saas-benchmarks/ · Bessemer Cloud Index www.bvp.com/atlas/state-of-the-cloud · David Skok LTV:CAC standard www.forentrepreneurs.com/saas-metrics/

Trends & comparison

Trend

Comparison (monthly vs. yearly)

How to use this calculator

Enter ARPU, gross margin, monthly churn and CAC. The result shows LTV, lifespan, the LTV:CAC ratio and a health verdict.

Why LTV:CAC matters

It is the core test of acquisition profitability. A healthy ratio means you can scale spend confidently.

Sources

LTV:CAC ratio benchmarks are sourced from public SaaS industry data including Bessemer Venture Partners and ChartMogul SaaS reports, versioned in the platform configuration.

Frequently asked questions

How is LTV calculated?

LTV = (ARPU × gross margin) ÷ monthly churn. Average customer lifespan is 1 ÷ churn months.

What is a healthy LTV:CAC?

3:1 is the widely used target. Below ~2:1 acquisition is unprofitable; well above 3:1 you may be underinvesting in growth.

How do I improve LTV:CAC?

Lower CAC, raise ARPU or margin, or reduce churn. The calculator shows the CAC that reaches a healthy ratio.

Related calculators

LTV Calculator — Customer Lifetime Value & LTV:CAC | LLM Economics