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How to use this calculator
Set up your team (Step 1), then rate each founder on 6 contribution factors — idea, capital, commitment, expertise, network, and track record (Step 2). Your suggested split updates live and is compared against real Carta benchmark data for your industry and team size (Step 3).
Set up your team, score each founder's contributions, then see how your split compares to real benchmark data.
Sources
🗓 Updated 2026
Carta 2026 Report · 54,601 US startups
Carta · Co-founder attrition · 7,015 teams
Healthtech & Crypto/Web3 benchmarks: Carta 2025 (team-size distributions, Chart 3)
Overall equity splits by team size · Carta 2016–2025
Equity splits by industry · Carta 2023–2025
% of 2-founder teams losing a co-founder by year · Carta 2016–2025
Rate each founder on 6 contribution factors. 1 = minimal, 5 = primary contributor. Your suggested split updates live.
For informational purposes only · Not legal or financial advice · Equity split benchmarks: Carta 2026 report (54,601 US startups, 2016–2025 · equity medians incorporated 2023–2025) · BVJ Consulting has no affiliation with Carta · Compiled by BVJ Consulting