SaaS LTV:CAC Ratio & Customer Lifetime Value Calculator
Calculate Customer Lifetime Value (LTV), LTV to CAC ratio, and CAC payback period in months from ARPU, gross margin, and churn.
Each customer generates $2,706 in gross-margin LTV over 33.3 months, yielding a 8.5x LTV:CAC ratio and 3.9-month CAC payback.
- Customer Lifetime Value (LTV)
- $2,706
- LTV : CAC Ratio
- 8.5x
- CAC Payback Period
- 3.9 mos
- Avg Customer Lifespan
- 33.3 mos
Formula & Methodology
LTV = (ARPU × GrossMargin%) ÷ MonthlyChurn% · LTV:CAC = LTV ÷ CAC
Default benchmark output: 8.5x LTV:CAC ($2,706 LTV) — Each customer generates $2,706 in gross-margin LTV over 33.3 months, yielding a 8.5x LTV:CAC ratio and 3.9-month CAC payback.
How to Use This Tool
- 1
Enter your startup metrics or copy inputs
Fill in the fields in the SaaS LTV:CAC Ratio & Customer Lifetime Value Calculator workspace above, or click "Load Example" to populate verified saas & startup finance benchmark data.
- 2
Review real-time calculations & benchmark grades
Inspect the primary output, supporting unit metrics, and diagnostic rules that update instantaneously in your browser with zero server round-trips.
- 3
Copy the report or deploy your launch plan
Click 'Copy Result' to export the clean Markdown output or code snippet, then launch your product on FoundrList to compound organic traffic and high-DR backlinks.
2026 Industry Benchmarks
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Frequently Asked Questions
- How does the SaaS LTV:CAC Ratio & Customer Lifetime Value Calculator work?
- Calculate Customer Lifetime Value (LTV), LTV to CAC ratio, and CAC payback period in months from ARPU, gross margin, and churn. All calculations, scoring rules, and templates run 100% client-side in your browser for instant feedback without sending private startup metrics to a server.
- What benchmarks does this saas & startup finance tool use?
- The SaaS LTV:CAC Ratio & Customer Lifetime Value Calculator uses current 2026 SaaS, indie hacker, and venture benchmarks across B2B SaaS, AI products, developer tools, and bootstrapped startups so you can compare your numbers against top-quartile performers.
- Is the SaaS LTV:CAC Ratio & Customer Lifetime Value Calculator completely free to use?
- Yes — every tool in the FoundrList Founder Tools suite is 100% free with no signup wall, usage cap, or watermark, and includes a clean Markdown twin (.md) for AI agents and coding assistants.
- How do I get more traffic and backlinks after using the SaaS LTV:CAC Ratio & Customer Lifetime Value Calculator?
- Submit your product on FoundrList (/agent) to compete on the weekly launch leaderboard, earn a permanent high-DR dofollow backlink, or book the $97 100-Directory Submission service (/pricing) to distribute your startup everywhere.