Ecommerce KPI Tool
LTV:CAC Ratio Calculator
Check if customer value is strong enough to support acquisition spend.
Formula: LTV:CAC Ratio = Customer LTV / Customer Acquisition Cost
Plan Mode
Free mode includes core outputs. Premium preview unlocks advanced inputs and deeper planning metrics.
Inputs
Enter your current operating numbers to get a quick decision-ready snapshot.
Scenario workspace
Save scenarios, compare outcomes, and export planning reports. Workspace data is auto-saved in your browser on this device.
Loading saved workspace...
No saved scenarios yet. Save your current assumptions to compare results over time.
| Scenario | Plan | LTV:CAC ratio | CAC share of LTV |
|---|---|---|---|
| Current session | Free | 4.57x | 21.88% |
Premium analysis lab
Use target tracking and sensitivity analysis to move from static calculations to decision support.
Premium Preview-only analysis
Switch to Premium Preview to unlock goal tracking and sensitivity testing for this tool.
When to use this tool
- Before opening a new acquisition channel with uncertain economics.
- When CAC is rising and you need a quick profitability stress test.
- During planning cycles to set realistic CAC guardrails.
Premium Preview capabilities
- Payback estimate from monthly gross profit cadence.
- Target-ratio-based CAC ceiling for campaign governance.
- Faster decisions on when to pause, optimize, or scale channels.
- Save up to 5 scenarios per tool and compare them side by side.
- Export scenario reports to CSV and PDF for planning discussions.
- Goal tracker for target-versus-actual performance on any key metric.
- Sensitivity analysis to test how input shifts affect core outcomes.
Ready to package these metrics into one workflow?
Use the Premium page to plan tiered access and conversion paths across this niche suite.
FAQ
What LTV:CAC ratio is usually healthy?
Many ecommerce teams target around 3.0x as a baseline, but acceptable ranges depend on margin and cash flow constraints.
Can a high ratio still be risky?
Yes. If payback is slow, growth can still create cash pressure even with a strong lifetime ratio.
Should ratio targets vary by channel?
Yes. Branded search often supports stronger ratios than colder social traffic, so channel-specific targets are useful.