Stock dilution calculator

Enter your values

See how new equity issuance changes an existing shareholder's ownership percentage and simple EPS.

Used only for direct-share mode.

Used only for funding-round mode.

Used for the before-vs-after EPS comparison.

All required fields must be filled in.

Post-Issuance Ownership

--

Enter the current cap-table assumptions to estimate ownership dilution and EPS impact.

Calculation History(0)
No calculations yet. Complete a calculation to see it here.

Example calculations

Tap an example to prefill the calculator with sample values.

Direct issuance

10M shares outstanding, 1.5M new shares issued

A simple dilution check when management already knows the new-share count.

Result: Ownership drops from 8.0% to about 6.96%, with EPS spread across a larger share base

Funding round

$6M raise on a $40M pre-money

Useful when you know the valuation and check size but not the exact share count yet.

Result: The implied share issuance leads to roughly 13% dilution versus the pre-round ownership stake

Powered by Calc Hub