Options Profit Calculator
Profit or loss, break-even, and the max you can make or lose on a single-leg call or put, evaluated at expiration. One contract is 100 shares.
Your option
How option payoff works
At expiration an option is worth only its intrinsic value. A call is worth the underlying minus the strike (or nothing); a put is worth the strike minus the underlying (or nothing). Your profit is that value minus the premium you paid, or the premium you kept minus what you owe.
Why the risk is asymmetric
Buying an option caps your loss at the premium but a long call has unlimited upside. Selling flips it: you collect premium as max profit, but a naked short call carries unlimited risk. Know which side of that you are on before you trade.
Disclaimer
Educational tool only, not investment advice. Options can expire worthless; you can lose your entire premium or more.
Common questions
- Is this at expiration or before?
- At expiration, using intrinsic value only. Before expiry an option also has time value, which this does not model.
- How many shares per contract?
- Standard US equity options are 100 shares per contract. Premium is quoted per share, so a $3 premium costs $300 per contract.
- Why is max loss "Unlimited"?
- A naked short call has no cap on how high the underlying can go, so the potential loss is unbounded. Buyers risk only the premium.