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Calcimator

Stock Option Value Calculator

Calculate intrinsic and estimated total value of stock options including tax impact.

Inputs

$
$
%
%
years

Results

Total Intrinsic Value

$125,000.00

≈ 8 used cars

After-Tax Value

$81,250.00

≈ 7 years of state college

Per Option Value$25.00
Vested Options5,000
Unvested Options5,000
Estimated Tax$43,750.00
Est. Total Value (incl. time)$168,301.27
How to Use This Calculator
  1. Enter current share price, strike price, and total number of options granted.
  2. Set vested percentage (%), tax rate on gains (%), and years to expiry.
  3. Review Total Intrinsic Value, After-Tax Value, Vested Options, and Estimated Total Value (including time value).
  4. Compare intrinsic value to after-tax value to understand the real take-home from exercising today.

How the result changes with Current Share Price

Current Share PriceTotal Intrinsic ValueAfter-Tax Value
$1,000.00$4,875,000.00$3,168,750.00
$3,500.00$17,375,000.00$11,293,750.00
$6,500.00$32,375,000.00$21,043,750.00
$9,000.00$44,875,000.00$29,168,750.00

What each input means

Current Share Price
Current market price per share.
Strike Price
Option exercise (strike) price per share.
Number of Options
Total number of stock options granted.
Vested Percentage
Percentage of options currently vested.
Tax Rate on Gains
Expected tax rate on option gains (ordinary income or capital gains).
Years to Expiry
Years until options expire.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Current Share Price = 50, Strike Price = 25, Number of Options = 10000, Vested Percentage = 50 = 6 input(s) provided
  2. Calculate Total Intrinsic Value
    Total Intrinsic Value
    125000 = $125,000
  3. Calculate After-Tax Value
    After-Tax Value
    81250 = $81,250
  4. Calculate Per Option Value
    Per Option Value
    25 = $25
  5. Calculate Vested Options
    Vested Options
    5000 = 5000

Engine last updated .

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