tam-sam-som-calculator

Compute TAM, SAM, and SOM estimates using top-down and bottom-up methods.

1|Updated May 13, 2026

Search Tags:#data analysis #finance #product strategy #strategic planning #market sizing

Ready to run

npx skills add https://github.com/argen/hornero --skill tam-sam-som-calculator-argen

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: tam-sam-som-calculator
Source: https://github.com/argen/hornero/tree/main/roles/product-manager/skills/tam-sam-som-calculator
Command: npx skills add https://github.com/argen/hornero --skill tam-sam-som-calculator-argen

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill provides a framework for accurately sizing markets, ensuring defensible TAM/SAM/SOM estimates to inform strategy, funding, and roadmaps.

Core Features & Use Cases

Market Sizing: Calculates Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) with top-down and bottom-up methods.
Data triangulation: Ensures consistency across top-down and bottom-up methods, resolving discrepancies and improving estimate reliability.
Application: Useful for preparing go/no-go recommendations, board presentations, and roadmap evaluations.

Quick Start

Run the tam-sam-som-calculator skill to begin the market-sizing process for your product.

Frequently Asked Questions about tam-sam-som-calculator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I calculate TAM, SAM, and SOM for my product?▼

TAM/SAM/SOM analysis estimates market size by calculating Total Addressable, Serviceable Available, and Serviceable Obtainable Markets. It applies top-down and bottom-up sizing methods with data triangulation to resolve discrepancies, ensuring defensible estimates for strategic product planning and venture capital funding pitches.

What's the best way to validate market sizing estimates for an investor pitch?▼

Validate market sizing estimates by triangulating data across top-down and bottom-up methods. This approach resolves discrepancies between different calculation models, improving estimate reliability and defensibility for board presentations and go/no-go strategic recommendations.

Can I use this market sizing framework for competitive analysis and financial metrics?▼

Yes, this market sizing framework applies financial metrics and competitive analysis to compute TAM, SAM, and SOM. It is suited for strategic decision-making in product management and venture capital scenarios where competitive context is essential for accurate estimates.

How do I resolve discrepancies between top-down and bottom-up market sizing methods?▼

Resolve top-down and bottom-up market sizing discrepancies through data triangulation. This ensures consistency across different estimation methods, improving the reliability of your TAM, SAM, and SOM calculations for roadmap evaluations and strategic planning.

Does this market sizing approach work for go/no-go product recommendations?▼

Yes, this market sizing approach directly supports go/no-go product recommendations. By computing defensible TAM, SAM, and SOM estimates through validated top-down and bottom-up methods, it provides the financial metrics needed for strategic product decisions and funding roadmaps.