Free Options Profit Calculator
Enter a strike, a premium and a position size to see your breakeven, your theoretical profit or loss at expiration, and a payoff chart for long and short calls and puts on US-style stock options (100 shares per contract).
Options simulator
The stock price field is the price you assume the stock will have at expiration. Each contract controls 100 shares. Commissions, taxes and early assignment are not included.
Payoff chart at expiration
Profit or loss in US dollars for the whole position at different stock prices on the expiration date.
How the calculator works
Call option
A call gives the buyer the right, but not the obligation, to buy 100 shares per contract at the strike price. It gains value when the stock finishes above the strike. A long call risks only the premium paid; a short call collects the premium but can lose a lot if the stock rallies.
Put option
A put gives the buyer the right to sell 100 shares per contract at the strike price. It gains value when the stock finishes below the strike. A long put risks only the premium; a short put collects the premium and takes on the risk of owning the stock if it falls.
Breakeven
The stock price at expiration where the position makes neither profit nor loss. For calls it is the strike plus the premium; for puts it is the strike minus the premium.
Maximum profit and maximum loss
Long options risk the premium paid, while short options earn at most the premium received. A long call has unlimited upside and a short call has unlimited risk. A long put’s profit is capped because a stock cannot fall below zero, and a short put’s loss is capped for the same reason.
Disclaimer: This calculator is for educational purposes only. Results are theoretical, based on the values you enter, and do not represent investment advice, a recommendation or an offer to buy or sell any security. Options involve risk and are not suitable for every investor.