Market Sizing Tool
Build your market sizing, segment by segment.
Total Addressable Market (TAM)
$1.2B
$1,200,000,000
1 segment combined
Serviceable Available Market (SAM)
$180.0M
$180,000,000
15.0% of TAM
Serviceable Obtainable Market (SOM)
$9.0M
$9,000,000
5% market share over 5 years
1. Total Addressable Market (TAM)
Build your TAM by defining customer segments (e.g., hospitals, specialty clinics, retail pharmacies)
2. Serviceable Available Market (SAM)
Filter your TAM to what you can realistically serve
What percentage of the global market can you physically or digitally serve?
$1.2B TAM × 25% geo × 60% fit × 100% constraints
This percentage represents additional limitations that reduce your serviceable market — such as regulatory requirements, technical integrations, compliance certifications, or other barriers. 100% means no constraints; 80% means 20% of your market is inaccessible due to these factors.
15.0% of TAM ($1.2B)
3. Serviceable Obtainable Market (SOM)
What you can realistically capture given competition and execution
Be conservative — new entrants typically achieve 3-10% in competitive markets
Timeline to reach your target market share (typically 3-5 years for seed/Series A)
4. Market Growth Projections
5-year forecast based on expected market growth
Expected yearly market growth rate — check industry reports for benchmarks
| Year | TAM | SAM | SOM |
|---|---|---|---|
| Today | $1.2B | $180.0M | $9.0M |
| Year 1 | $1.3B | $201.6M | $10.1M |
| Year 2 | $1.5B | $225.8M | $11.3M |
| Year 3 | $1.7B | $252.9M | $12.6M |
| Year 4 | $1.9B | $283.2M | $14.2M |
| Year 5 | $2.1B | $317.2M | $15.9M |