Startup-finance utility

Startup Funding Dilution Calculator

Calculate post-money valuation, investor ownership and founder dilution for a primary funding round.

Calculate funding dilution

Investor ownership
Founder post-round ownership
Post-money valuation
Approximate pool top-up dilution
Pre-money option-pool mechanics can materially change founder dilution.
Educational calculator · Reviewed 14 July 2026 · Official law, portal data and professional judgement prevail. Methodology Editorial policy Legal and disclaimer