Updated · Methodology: named formula library
CAC:LTV Ratio Calculator
Customer acquisition cost to lifetime value.
CAC to LTV = 2:1 (2 as decimal).
Why This Calculation Matters
The CAC:LTV Ratio Calculator supports faster, cleaner business decisions. Use it to stress-test assumptions before sharing numbers with a customer, investor, or team.
How to Use This Calculator
- Enter your values in the input fields, each one has a label and help text explaining what to type.
- Results appear instantly as you type; there's no "calculate" button to press.
- Change any input to compare scenarios side by side.
All math happens in your browser. Nothing you type is sent to a server, saved, or shared.
How to Use
Enter values in the fields on the left. Results update as you type, no submit button needed.
Understanding Results
Each output shows the calculated figure plus a breakdown of contributing inputs. Compare scenarios by editing any value.
Accuracy Notes
Every CAC:LTV Ratio Calculator on CalcIntel uses a documented formula. Results are estimates, real outcomes depend on assumptions and market conditions not captured in a simplified calculation.
Worked Example
100 CAC to 50 LTV
- a
- 100
- b
- 50
- Result
- 2:1 (2.00)
100 / 50 = 2.00. Simplified: 2:1.
When to Use This Calculator
- Price products, services, or contracts with margin-aware math.
- Forecast revenue, cost, or cash flow before signing a deal.
- Compare two offers or two suppliers on a like-for-like basis.
- Support decisions in a pitch, investor update, or board deck.
Limitations & Common Mistakes
- Results are estimates, real-world outcomes depend on factors not captured in a simplified calculation.
- Always verify critical numbers against an authoritative source or domain expert before acting on them.
Frequently Asked Questions
How is the CAC:LTV Ratio Calculator computed?
CAC divided by LTV, plus a simplified ratio (e.g., 4:3) using greatest common divisor. Both decimal and ratio forms are useful in different contexts: decimal for math, ratio form for comparisons or recipe scaling.
What does CAC:LTV mean?
It's a comparison: for every LTV unit, you have a corresponding amount of CAC. Useful when the absolute numbers matter less than the proportion (e.g., reading 8:1 LTV/CAC immediately tells you the unit economics are healthy without needing the dollar amounts).
Why simplify the ratio?
4:3 is more readable than 200:150. The simplified form (using greatest common divisor) preserves the proportion while making it easier to interpret. Common simplified ratios: 16:9 (widescreen), 4:3 (legacy displays), 3:1 (LTV:CAC for SaaS).
When is a ratio more useful than the absolute values?
Comparison across scales. A $1B company and a $1M company can both have a 3:1 LTV:CAC; the ratio reveals comparable unit economics regardless of scale. Use ratios for benchmarking; use absolute numbers for budgeting.
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