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Cap Table & Dilution Calculator

See exactly who owns what after your next round. Add founders and existing holders, set the raise, pre-money valuation and option pool, and get the full post-round cap table.

The round

$
$
%

Existing shareholders

Post-money valuation
$10,000,000
New investor owns
Option pool
Price / share
Existing holders diluted

Post-round cap table

HolderPre-roundPost-roundValue
Total100%100%

How dilution works in a priced round

When you raise a priced round, new shares are issued, so everyone's percentage shrinks even though your number of shares doesn't change. The new investor's stake is raise ÷ post-money (post-money = pre-money + raise). An option pool is usually created pre-money, which means it dilutes existing shareholders, not the incoming investor. This calculator carves the pool pre-money and dilutes existing holders by the investor stake plus the pool — the common "pre-money pool" convention. Real term sheets vary, so treat this as a fast estimate, not legal advice.

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