What is it?
TAM is total opportunity, SAM is the part you can actually serve, and SOM is what you can realistically win soon.
Market
TAM / SAM / SOM calculator
TAM is total opportunity, SAM is the part you can actually serve, and SOM is what you can realistically win soon.
Enter TAM, then set SAM as a share of TAM and SOM as a share of SAM. Values update live.
TAM / SAM / SOM calculator
Inputs
Results
SAM
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SOM
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SOM vs TAM
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Guide
Make the market pyramid clear
Why it matters
Without the split, pitches and growth plans stay either vague or unrealistically optimistic.
How it works
Enter TAM, then set SAM as a share of TAM and SOM as a share of SAM. Values update live.
Formula SAM = TAM × share% · SOM = SAM × share%
Go deeper
Why you’ll love this
TAM/SAM/SOM clarifies the market pyramid so pitch and growth numbers stay realistic.
How to jump in
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Enter TAM
Set total market opportunity.
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Set SAM and SOM shares
Choose serviceable and near-term obtainable percentages.
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Read the pyramid
SAM, SOM, and SOM-vs-TAM update live.
What you walk away with
- Live math
- What / why / how guide
- IRR and USD
- Links to SWOT and value proposition
Where it shines
Investor pitch
Show a market pyramid instead of one vague number.
Market focus
See which slice you can actually serve.
Sales targets
Connect SOM to near-term goals.
Quick answers
SAM vs SOM?
SAM is what you can serve; SOM is what you can realistically win soon.
Must it be currency?
Usually yes. User counts work too, but keep one consistent unit for comparisons.