Startup equity & dilution
Every funding round shrinks your slice. This shows what your ownership becomes after seed, Series A, B and an option pool, and what that stake is worth at an exit. Enter the percentage each round dilutes existing holders.
Your starting point
Dilution per round (%)
- Final ownership
- 0%
- Total dilution
- 0%
- Value at exit
- $0
Simplified model: each round multiplies your stake by (1 minus its dilution). Real cap tables add pro-rata, liquidation preferences, and option-pool timing. Estimate only.
Why dilution surprises founders
Ownership compounds downward. Four rounds that each take fifteen to twenty percent do not add up to sixty percent gone; they multiply, and a founder who started with a fifth of the company can end with a small single-digit stake that is still worth more than the larger early slice, because the pie grew. The number that matters is your stake times the exit value, not the percentage alone. For more on building the kind of company worth diluting into, see the ventures and writing.