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03

safe dilution calculator

Fundraising

Stack multiple SAFEs and see the real dilution impact before your priced round. Know what you're actually giving up.

Current Cap Table
shares
shares
Your current ownership: 60%
SAFE 1
$
$
%
Priced Round Detailsoptional
$
$
% of FD
Your Ownership Before
60%
Your Ownership After
56.25%
Total SAFE Dilution
6.25%
New Shares Issued
666.7K
Post-Conversion FD
10.67M
Option Pool After
9.37%
SAFE Conversion Details
SAFETypeAmountCapShare PriceSharesOwnership
SAFE 1
post-money$500K$8.00M$0.7500666,6676.25%
Post-Conversion Ownership
You56.25%
Other Shareholders28.12%
Option Pool9.37%
SAFE 16.25%
How to read this
Post-money SAFEs give investors a fixed ownership percentage (amount ÷ cap), regardless of other SAFEs. Pre-money SAFEs convert based on your current cap table only - the investor’s ownership dilutes alongside yours as more SAFEs convert. Stacking multiple post-money SAFEs compounds dilution fast.