Market Sizing (TAM/SAM/SOM)
Validation & Ideation
Market Sizing Tool
Calculate your TAM, SAM, and SOM to understand your market opportunity.
Market Parameters
$
Total revenue opportunity if you had 100% market share
20%
10%
$
Market Opportunity
TAM (Total Addressable Market)
$1,000,000
SAM (Serviceable Addressable Market)
$200,000
20% of TAM
SOM (Serviceable Obtainable Market)
$20,000
10% of SAM
Customers Needed to Reach SOM
20
Key Takeaways
• TAM shows total opportunity size
• SAM is your realistic target market
• SOM is what you can capture in 3-5 years
• Investors want to see large TAM (>$1B) with realistic SOM