Startup compensation · Equity

Stock Option Value Calculator

Estimate exercise cost, intrinsic value and scenario value for vested startup stock options.

Option assumptions

CurrencyOptions grantedVested (%)Strike price per shareCurrent share valueFuture scenario share valueEstimated tax rate on gain (%)Fully diluted company shares

Option results

Vested options—

Unvested options—

Exercise cost—

Current intrinsic value—

Future gross option value—

Estimated tax on future gain—

Future value after estimated tax—

Ownership from all options—

Ownership from vested options—

How option value is estimated

Intrinsic value = vested options × max(share value − strike price, 0). Exercise cost is vested options multiplied by the strike price. Ownership uses the fully diluted share count supplied.

This simplified scenario excludes option type, vesting events, liquidity discounts, currency changes and jurisdiction-specific taxes. It is not tax, legal or investment advice.