Business Finance
Estimate simple post-money investor ownership and founder dilution.
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FinTrex result
Funding Dilution Calculator
New investor ownership
20%
Founder ownership after simple dilution
64%
Post-money valuation
$2,500,000
What changes this most?
Dilution is driven by the investment relative to the post-money valuation, not simply the investment divided by pre-money value.
Sensitivity check
A roughly 10% move in pre-money valuation changes the modeled headline result by up to 1.7% in this setup.
Real cap tables may include option pools, preferences and convertible instruments.
Use the number fields, sliders, or a quick preset. You can fully clear a field while editing.
Formula
Post-money valuation equals pre-money valuation + new investment; investor ownership equals investment ÷ post-money valuation.
This simple primary-equity model excludes option pools, SAFEs/convertibles, liquidation preferences, debt and existing cap-table complexity.
Editable rates, growth assumptions, prices, fees, and percentages are planning inputs unless the calculator explicitly identifies a current source.
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