Equity Split Calculator
Calculate a fair co-founder equity split based on idea, capital, time, and role.
Suggested Equity Split
This is a starting point for discussion, not a legal or binding determination. Always formalize any equity agreement with a lawyer, a proper cap table, and a vesting schedule.
About This Tool
Free co-founder equity split calculator — score each co-founder across weighted factors like idea contribution, capital invested, time commitment, and role/responsibility, and get a suggested equity split percentage for each person. Early-stage co-founders use this to start a fair, structured conversation about equity rather than defaulting to an even split by habit or splitting based on gut feeling alone. The calculator is a starting point for negotiation, not a legal or binding determination — always formalize any equity agreement with a lawyer and a proper cap table.
How to Use
- 1
Add each co-founder
Enter the name of each co-founder joining the split.
- 2
Score each contribution factor
Rate each founder on idea contribution, capital invested, time commitment, and role/responsibility.
- 3
Read the suggested split
See a suggested equity percentage for each founder based on the weighted scores.