Market Sizing and TAM/SAM/SOM Calculator

You are a market research analyst who sizes markets for business planning and investor presentations. Calculate the market size for this opportunity.

Product/Service: [WHAT YOU OFFER]
Target customer: [WHO BUYS THIS]
Geography: [MARKETS]
Pricing model: [HOW YOU CHARGE]
Available data points: [ANY KNOWN DATA]

Provide:

**Market Sizing Summary**
| Market | Size | Growth Rate |
|--------|------|-------------|
| TAM | $XB | X% CAGR |
| SAM | $XB | X% CAGR |
| SOM (Year 1) | $XM | |
| SOM (Year 3) | $XM | |

**Total Addressable Market (TAM)**

Top-Down Approach:
- Industry size: $X
- Relevant segment: X%
- TAM: $X
- Sources: [list]

Bottom-Up Approach:
- Total potential customers: X
- Average revenue per customer: $X
- TAM: $X
- Calculation: [show work]

Reconciliation:
- Variance between approaches
- Confidence level
- Preferred estimate and why

**Serviceable Addressable Market (SAM)**

Filters applied:
- Geographic filter: [reduces by X%]
- Segment filter: [reduces by X%]
- Technical requirements: [reduces by X%]
- Other constraints: [reduces by X%]

SAM Calculation:
- TAM: $X
- After filters: $X
- SAM: $X (X% of TAM)

**Serviceable Obtainable Market (SOM)**

Year 1 Realistic Target:
- SAM: $X
- Achievable market share: X%
- Based on: [competitors, resources, go-to-market]
- SOM: $X

Growth Trajectory:
| Year | Market Share | SOM |
|------|--------------|-----|
| 1 | X% | $X |
| 3 | X% | $X |
| 5 | X% | $X |

**Market Growth Drivers**
- Tailwinds accelerating growth
- Headwinds slowing growth
- Disruption potential

**Key Assumptions**
| Assumption | Value | Sensitivity |
|------------|-------|------------|

**Data Sources**
- Industry reports cited
- Government data
- Analyst estimates
- Primary research

**Confidence Assessment**
- Overall confidence: [HIGH / MEDIUM / LOW]
- Key uncertainties
- What would change estimates

You are a market research analyst who sizes markets for business planning and investor presentations. Calculate the market size for this opportunity.

Product/Service: [WHAT YOU OFFER]
Target customer: [WHO BUYS THIS]
Geography: [MARKETS]
Pricing model: [HOW YOU CHARGE]
Available data points: [ANY KNOWN DATA]

Provide:

**Market Sizing Summary**
| Market | Size | Growth Rate |
|--------|------|-------------|
| TAM | $XB | X% CAGR |
| SAM | $XB | X% CAGR |
| SOM (Year 1) | $XM | |
| SOM (Year 3) | $XM | |

**Total Addressable Market (TAM)**

Top-Down Approach:
- Industry size: $X
- Relevant segment: X%
- TAM: $X
- Sources: [list]

Bottom-Up Approach:
- Total potential customers: X
- Average revenue per customer: $X
- TAM: $X
- Calculation: [show work]

Reconciliation:
- Variance between approaches
- Confidence level
- Preferred estimate and why

**Serviceable Addressable Market (SAM)**

Filters applied:
- Geographic filter: [reduces by X%]
- Segment filter: [reduces by X%]
- Technical requirements: [reduces by X%]
- Other constraints: [reduces by X%]

SAM Calculation:
- TAM: $X
- After filters: $X
- SAM: $X (X% of TAM)

**Serviceable Obtainable Market (SOM)**

Year 1 Realistic Target:
- SAM: $X
- Achievable market share: X%
- Based on: [competitors, resources, go-to-market]
- SOM: $X

Growth Trajectory:
| Year | Market Share | SOM |
|------|--------------|-----|
| 1 | X% | $X |
| 3 | X% | $X |
| 5 | X% | $X |

**Market Growth Drivers**
- Tailwinds accelerating growth
- Headwinds slowing growth
- Disruption potential

**Key Assumptions**
| Assumption | Value | Sensitivity |
|------------|-------|------------|

**Data Sources**
- Industry reports cited
- Government data
- Analyst estimates
- Primary research

**Confidence Assessment**
- Overall confidence: [HIGH / MEDIUM / LOW]
- Key uncertainties
- What would change estimates