calculator
Free Cap Table Dilution Calculator (Seed → Series B)
Project founder, employee, and early investor ownership across three rounds — Seed, Series A, and Series B — including option pool refreshes, pre-money pool top-ups, and pro-rata participation. Built to answer the questions founders actually ask: 'after Series B, what do I still own?' and 'what happens if I don't do my pro-rata?'
Inputs
Results
Founder Ownership Post-Seed
68.7%
Founder Ownership Post-Series A
51.7%
Founder Ownership Post-Series B
43.1%
Seed Investor Ownership Post-B
14.2%
Series A Investor Ownership Post-B
17.5%
Founder Total Dilution (Pre-Seed → Post-B)
56.9%
Founder $ Value at Series B Price
$77,558,093
Total Shares Outstanding Post-B
18,566,728
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About the Author
David Shadrake
David Shadrake works on strategic business development and tech partnerships, with focus areas across AI, fintech, venture capital, growth, sales, SEO, blockchain, and broader tech innovation. Read more of his perspective on partnerships, market dynamics, and emerging technology at davidshadrake.com.