Employee Stock Option Calculator
Vested value, spread and exercise cost.
Enter your values
Results update instantly as you type — no submit needed.
Results
- Paper gain
- $52,000.00
- Vested options
- 10,000
- Exercise cost
- $12,000.00
- Value if fully vested
- $104,000.00
Quick answer
Option value is the spread between current share price and strike price on vested shares.
Gain = vested × (price − strike)
How to use the Employee Stock Option Calculator
- 1Enter options granted and the percentage vested.
- 2Enter your strike price.
- 3Enter the current or expected share price.
Frequently asked questions
Do I owe tax on exercise?
Often yes on the spread — check whether your grant is ISO or NSO equivalent.
What if the price is below strike?
The options are underwater and worth nothing today.