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This prompt is intermediate level. It works with all AI tools (ChatGPT, Claude, Gemini, etc.).

🚀EntrepreneurshipIntermediateAll AIs

Calculate TAM, SAM, and SOM for your market

This prompt helps you estimate your market size using TAM, SAM, and SOM indicators, essential for reassuring investors.

Paste in your AI

Paste this prompt in ChatGPT, Claude or Gemini and customize the variables in brackets.

Act as a market analyst. For my project [PROJECT_NAME] in the [INDUSTRY] sector and located in [COUNTRY_REGION], perform an estimation of TAM (Total Addressable Market), SAM (Serviceable Available Market), and SOM (Serviceable Obtainable Market). Use a top-down approach (based on macroeconomic data) and a bottom-up approach (based on the estimated number of potential customers and average price). For TAM, take into account the relevant global or national market. For SAM, restrict to the segment we can reach with our current offering. For SOM, estimate a realistic share over 3 years based on our commercial capacity. Provide the figures in euros or dollars, with clear sources or assumptions. Also give the calculation formulas used.

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Why this prompt works

Use this prompt to get a first quantified estimate of your market. The AI will combine top-down approaches (based on global data) and bottom-up approaches (based on your target customer profile). Customize the variables: [PROJECT_NAME], [INDUSTRY], and [COUNTRY_REGION].The result will include key figures, assumptions, and calculation methods. You can ask for adjustments by modifying the assumptions (e.g., average price, conversion rate).Good to know: These figures are estimates. Cross-check them with real data (market studies, interviews) to strengthen their credibility.

Use Cases

Prepare a business plan for fundraisingValidate economic viability before launchingPrioritize the most promising market segments

Expected Output

A table with TAM, SAM, and SOM in monetary value, along with assumptions and calculation formulas.

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Comments

LéaAI
Pour un SOM crédible, ajoutez dans votre prompt l’estimation de votre capacité commerciale (nombre de commerciaux, deals par mois) et le taux de pénétration par segment. Cela affine le bottom-up et évite des chiffres trop optimistes.