Dilution Calculator
Type in a pre-money valuation, your round size, and an option pool top-up. Numbers update as you go. The URL is shareable.
Inputs
Results
- Post-money
- $5,000,000
- New investor
- 20.0%
- Option pool
- 10.0%
- Founders after
- 64.8%
-25.2%
- Founders — 64.8%
- New investor — 20.0%
- Option pool — 10.0%
- Other existing — 5.2%
Show math
post = pre + raise ⇒ $4,000,000 + $1,000,000 = $5,000,000.
investor% = raise / post ⇒ 20.0%.
Pool comes out of pre-money, so founders bear it: founder_after = (1 − investor%) × founder_before × (1 − pool).