LTV to CAC Ratio & Venture Growth Capital Efficiency Calculator

The Venture Capital Matrix: Understanding the LTV:CAC Spectrum

Top tech investors (Andreessen Horowitz, Bessemer Venture Partners) categorize companies by their LTV:CAC Ratio:

• < 1.0x (Value Destruction): The company loses money on every customer acquired.

• 1.0x to 2.5x (Danger Zone): Operating overhead and working capital interest will consume all margins.

• 3.0x to 4.5x (The Sweet Spot): High profitability combined with healthy growth reinvestment.

• > 5.0x (Under-Invested): The company is hoarding cash rather than capturing market share against competitors.

How to Use This Calculator

Enter your Customer Lifetime Value (Gross Margin LTV in ) (e.g. 3200), Fully-Loaded Customer Acquisition Cost (CAC in ) (e.g. 800), Business Model & Target Customer Segment — choose from B2B Mid-Market / Enterprise SaaS (Target LTV:CAC ≥ 4.0x), B2B SMB / Self-Serve SaaS (Target LTV:CAC ≥ 3.0x), B2C Consumer Subscription (Target LTV:CAC ≥ 2.5x), and Annual Growth / S&M Budget () [for Expansion Modeling] (e.g. 250000). Results update instantly as you type — adjust any value to compare scenarios.

The Formula

LTV:CAC ratio & capital expansion equations::CAC Ratio = (Customer Lifetime Value (Gross Margin LTV)) / (Customer Acquisition Cost (Fully-Loaded CAC)) Profit Contribution per User = LTV - CAC Return on Ad Spend (ROAS \%) = ((LTV) / (CAC)) × 100\% Customers from Budget = (Annual Marketing Budget) / (CAC) Lifetime Gross Value = New Customers × LTV

Worked Example

For example, evaluating a B2B SaaS startup with a 3,200.00 Gross Margin LTV and an 800.00 Fully-Loaded CAC deploying a 250,000 annual marketing budget: The LTV:CAC Ratio is \ (Optimal SaaS Sweet Spot). Each customer nets +2,400.00 in lifetime profit. The 250,000 budget acquires 312 customers, creating 998,400.00 in cumulative lifetime value.

Understanding Your Result

Percentages are relative values — context determines what is "good" or "bad." A 50% discount is significant; a 50% failure rate is alarming. Percentage change and percentage points are different: moving from 4% to 5% is a 1 percentage point increase, but a 25% relative increase. When comparing percentages across different base values, always check whether absolute differences are meaningful — a 10% improvement on a large base creates more absolute value than 10% on a small base.