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Market Size Calculator


Market size defines opportunity. Calculate TAM, SAM, and SOM for business planning and investor pitches.


How the Market Size Calculator works


Systematically calculate market opportunity using multiple methods. Validate estimates and present credible market analysis for strategic decisions.

Market size drives investment decisions. This calculator provides rigorous analysis for convincing business cases.



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WriteVoice turns your voice into clean, punctuated text that works in any app. Create and ship faster without typing. Your first step was Market Size Calculator; your next step is instant dictation with WriteVoice.



A blazing-fast voice dictation

Press a hotkey and talk. WriteVoice inserts accurate, formatted text into any app, no context switching


Works in any app

Press one hotkey and speak; your words appear as clean, punctuated text in Slack, Gmail, Docs, Jira, Notion, and VS Code—no context switching, just speed with writevoice

Accurate, multilingual, and smart

97%+ recognition, smart punctuation, and 99+ languages so your ideas land first try, built for teams and pros.

Private by default

Zero retention, audio and text are discarded instantly, with on-device controls so you can dictate sensitive work confidently.



Start with Market Size Calculator, then level up to WriteVoice.io