Money, pricing & model

What are unit economics and why do they matter?

The short answer

Unit economics is the profit or loss on a single customer or unit, strip away the noise and ask 'do I make money on one customer?' If the answer is no and there's no clear path to yes, scaling just burns cash faster. Get the unit right first; growth multiplies whatever the unit is, good or bad.

Go deeper, your way

3 hand-picked resources, 2 link-checked. Pick how you want to dig in.

📄 Article
✓ Link checked Free Intermediate

Why we picked it The reference primer on the metrics and market-sizing logic investors use, including bottom-up market sizing that keeps founders honest about how big a market really is. Canonical a16z source.

16 Startup Metrics

From a16z by Andreessen Horowitz (a16z) ~15 min read

  • Size markets bottom-up from customer count and willingness to pay
  • Know the metrics that actually signal a healthy business
  • Distinguish real traction from vanity metrics
  • Use consistent definitions when comparing yourself to the market
Open a16z.com →
📄 Article
✓ Link checked Free Advanced

Why we picked it David Skok's For Entrepreneurs work is the foundational, near-universally cited source on SaaS unit economics and modeling. It's where the LTV:CAC and CAC-payback conventions were popularized.

SaaS Metrics 2.0, Detailed Definitions

From forentrepreneurs.com by David Skok long-form reference

  • Unit economics (LTV:CAC and months to recover CAC) reveal long-term profitability
  • Simple LTV formulas break when revenue expands over a customer's lifetime
  • Build financial models from real drivers, not top-down market-share guesses
Open forentrepreneurs.com →
📄 Article
Free Intermediate

Why we picked it A focused a16z piece on the single ratio that most captures a business's efficiency and drives its valuation. Great for founders who need to understand the 3:1 benchmark and its limits.

Why Do Investors Care So Much About LTV:CAC?

From a16z.com by Andreessen Horowitz (a16z) article

  • 3x LTV:CAC is a common rule-of-thumb benchmark for healthy unit economics
  • Higher LTV:CAC drives higher margins and therefore higher valuation
  • The ratio can mislead, CAC payback period matters just as much for cash
Open a16z.com →

Terms in this answer

Unit Economics

People also ask

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