Customer Lifetime Value & Unit Economics Calculator
### Venture Capital Unit Economics: Why LTV Must Always Factor Gross Margin A critical mistake made in early-stage startups is calculating LTV as Revenue / Churn without factoring **Gross.
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💡 Practical Example
For example, evaluating a SaaS company with $85.00 monthly ARPU, an 80% gross profit margin, a 2.50% monthly churn rate, and a $650.00 CAC: Customer Lifespan is \}}\). Gross Margin LTV is \. The LTV:CAC Ratio is \, delivering +$2,070.00 in net lifetime profit per customer (Gold Standard Benchmark).
📖 About Customer Lifetime Value & Unit Economics Calculator
Venture Capital Unit Economics: Why LTV Must Always Factor Gross Margin
A critical mistake made in early-stage startups is calculating LTV as Revenue / Churn without factoring Gross Margin:
- If you sell 100/mo software with 80% gross margin, your monthly profit per user is
80.
- If you sell 100/mo physical goods with 30% gross margin, your monthly profit is only
30.
- Basing your marketing budget on top-line revenue LTV rather than Gross Margin LTV will lead to rapid cash burn and insolvency.
How to Use This Calculator
Enter your Average Revenue per User (Monthly ARPU in ) (e.g. 85.0), Gross Profit Margin (%) (e.g. 80.0 (after hosting/infrastructure COGS)), Monthly Customer Churn Rate (%) (e.g. 2.5), Annual Discount Rate / Cost of Capital (%) [for DCF LTV] (e.g. 10.0), and Customer Acquisition Cost (CAC in ) [for LTV:CAC] (e.g. 650). Results update instantly as you type — adjust any value to compare scenarios.
The Formula
Customer Lifetime Value (LTV / CLV) & DCF unit economics equations: Customer Lifespan (Months) = (1) / (Monthly Churn Rate (Fraction)) Margin LTV = (Monthly ARPU × Gross Margin (\%)) / (Monthly Churn Rate (Fraction))-Adjusted Present Value LTV = (Monthly ARPU × Margin) × [1 + d_moChurn_mo + d_mo] Lifetime Customer Profit = Gross Margin LTV - Customer Acquisition Cost (CAC):CAC Ratio = (Gross Margin LTV) / (Customer Acquisition Cost (CAC))
Worked Example
For example, evaluating a SaaS company with 85.00 monthly ARPU, an 80% gross profit margin, a 2.50% monthly churn rate, and a 650.00 CAC: Customer Lifespan is . Gross Margin LTV is . The LTV:CAC Ratio is \, delivering +2,070.00 in net lifetime profit per customer (Gold Standard Benchmark).
Understanding Your Result
Marketing metrics are most useful as trends over time rather than isolated snapshots. Benchmark your result against your own historical performance first, then against industry averages. Attribution models (last-click vs. multi-touch) can produce dramatically different channel ROI figures — ensure consistent attribution methodology before making channel budget decisions. Statistical significance requires sufficient sample size: most A/B test decisions need a minimum of 1,000 conversions per variant for reliable results.
💡 Methodological Standards & Calculation Accuracy
- All calculations are performed client-side in your browser using verified, standards-compliant mathematical algorithms.
- Results are provided for educational and informational analysis; verify critical applications with certified domain specialists.
- Ensure input values are entered in consistent units matching the selector options to guarantee accurate outputs.
- Periodic recalibration is recommended whenever baseline assumptions, operating parameters, or external conditions change.
Results are for informational and educational purposes only. Always verify critical decisions with a qualified professional.