Strategy · 2026-05-18

How to Use AI to Size a Market in Seconds

TAM, SAM, SOM. Three acronyms, hours of googling. DemandSonar's "Instant Market Sizer" gives you bottom-up estimates in seconds. It multiplies transactional search volume by average price, then applies a serviceable market geography filter. For "subscription service for curly hair products," it calculated: 28,000 transactional searches/month, average basket $35, TAM $11.7M. It then applied a SAM filter for U.S. only, bringing it to $6.2M. Finally, based on typical startup capture rates, SOM was $620K. All in 15 seconds. It's not a perfect number, but it's directionally accurate enough to decide if the market is worth entering. Stop building spreadsheets. Start building. [Size your market now →]

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