tam-sam-som-calculatorlisted

## Purpose Guide product managers through calculating Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) for a product idea by asking adaptive, contextually relevant questions. Use this to build defensible market size estimates backed by real-world citations, economic projections, and population data—essential for pitching to investors, securing budget, or validating product-market fit. This is not a back-of-napkin guess—it's a structured, citation-backed analysis that withstands scrutiny. ## Key Concepts ### TAM/SAM/SOM Framework The three-tier market sizing model: **Total Addressable Market (TAM):** - The total market demand for a product or service - "If we captured 100% of the market, what's the revenue?" - Broadest possible market (no constraints) **Serviceable Available Market (SAM):** - The segment of TAM your company can realistically target - Narrowed by geography, firmographics, demographics, or product constraints - "Who can we actually reach with our product?" **Serviceable Obtainable Market (SOM):** - The portion of SAM you can realistically capture - Accounts for competition, market constraints, go-to-market capacity - "What can we capture in the next 1-3 years?" ### Why This Works - **Top-down validation:** TAM → SAM → SOM ensures estimates are grounded in reality - **Investor-friendly:** Standard framework VCs and execs understand - **Citation-backed:** Real data sources (Census, Statista, World B