Definition
LTV:CAC ratio compares lifetime gross profit to acquisition cost to show unit economics efficiency.
Answer-first summary
LTV:CAC Ratio: LTV:CAC ratio compares lifetime gross profit to acquisition cost to show unit economics efficiency.
Formula
LTV:CAC
LTV:CAC = LTV / CAC
- LTV: Lifetime value (gross profit)
- CAC: Customer acquisition cost (fully-loaded)
If LTV=$12,000 and CAC=$4,000 → LTV:CAC = 3.0×.
Directional LTV:CAC Benchmarks
Benchmarks vary widely by industry, ACV, go-to-market motion, geography, and measurement method. Treat these as directional ranges, not targets.
| Segment | P25 | P50 | P75 | Notes |
|---|---|---|---|---|
| B2B SaaS (general) | 2× | 3× | 4–5× | — |
Sources
- Directional industry ranges (compile from public SaaS benchmark reports)
How to improve
- Increase LTV via retention and expansion.
- Reduce CAC via targeting and conversion improvements.
Common pitfalls
- Ignoring payback timing (a high ratio with 36-month payback can still be risky).
- Using revenue LTV instead of gross profit.
Track LTV:CAC Ratio automatically
Use dashboards, reports, and KPI definitions to keep your team aligned. Start a trial or book a demo.
FAQ
- Is 3× always the goal?
- 3× is a common heuristic; your optimal ratio depends on growth rate, payback constraints, and capital availability.
- Should I optimize ratio or payback?
- Optimize both—ratio for profitability and payback for cash efficiency.
Topic hub
Explore the full cluster for stronger context, benchmarks, templates, and comparisons.
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- SaaS Magic Number
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- Customer Acquisition Cost (CAC)
CAC measures the cost to acquire a customer. Learn how to calculate fully-loaded CAC and reduce it.
- Customer Lifetime Value (LTV)
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- Gross Margin
Gross margin is revenue minus COGS. Learn SaaS-specific COGS, benchmarks, and improvement levers.
- Burn Multiple
Burn multiple measures how much cash you burn to generate net new ARR. Learn formula and levers.
Related calculators
- LTV:CAC Ratio Calculator
Compute LTV:CAC ratio using LTV and CAC or via ARPA/gross margin/churn + CAC.
- CAC Payback Calculator
Calculate CAC payback period using CAC, ARPA, and gross margin. Share results via URL and track improvements over time.
- LTV Calculator
Calculate LTV using ARPA, gross margin, and churn. Includes shareable inputs via URL.
- Burn Multiple Calculator
Calculate burn multiple from net burn and net new ARR.
Related templates
- GTM Scorecard Template
Template for CAC, payback, win rate, cycle length, and pipeline coverage.