Cap Table Calculator
Model your equity structure from day one through Series A. See exactly how each funding round dilutes founders, employees, and early investors — before you sign a term sheet.
Used by founders modeling equity before investor conversations
Initial Setup
Most startups start with 10M authorized shares. This does not affect ownership percentages.
Option Pool (ESOP)
Reserved for employees and advisors. Dilutes founders at founding — this is intentional and standard.
Option pool = 11.1% of founding total
No rounds yet. Add a round to model dilution.
Cap Table
| Stakeholder | Founding | |
|---|---|---|
| Shares | % | |
| Co-founder 1Founder | 4.00M | 44.4% |
| Co-founder 2Founder | 4.00M | 44.4% |
| Option Pool (ESOP)ESOP | 1.00M | 11.1% |
| Total | 9.00M | 100% |
| Post-money | — | |
Ownership by round
How to use this calculator
Set up your founding structure
Enter each founder's share count. Standard splits are equal between co-founders, but the number of shares is less important than the ratio. 10M authorized shares with a 50/50 split is the same as 2M shares with a 50/50 split.
Add your option pool
Most startups reserve 10–15% for employees and advisors. This dilutes founders now — investors prefer a large option pool so post-investment dilution doesn't come out of their stake. This is negotiable but expected.
Add funding rounds in order
Add rounds chronologically. If you have a SAFE note, add it and specify which priced round it converts at. The table updates automatically to show how each round changes everyone's ownership.
How this calculator works
Frequently asked questions
Investors review your cap table before they write a check.
A clean cap structure signals a founder who understands how equity works. Build your Hockystick profile to show investors you are fundraising-ready.