🎯Options Profit Calculator

About this tool

Choose a call or put, whether you're buying or selling it, and enter the strike, premium, number of contracts, contract multiplier and the underlying price at expiry. You'll see the profit or loss, break-even, maximum profit and maximum loss, plus a chart of the payoff across a range of prices.

How option payoffs work

A call gives the right to buy shares at the strike price, and a put the right to sell. At expiry an option is worth its intrinsic value: for a call, how far the stock is above the strike, and for a put, how far it is below. If you buy an option, you pay the premium. Your maximum loss is that premium, and your break-even is the strike plus the premium for a call, or minus it for a put. If you sell (write) an option, you collect the premium as your maximum profit but take on the obligation. A short put can lose up to the strike minus the premium per share, and a naked short call has unlimited risk. US equity options usually cover 100 shares per contract. For example, buying 2 calls with a $100 strike at $4.20 costs $840. If the stock is at $110 at expiry, they're worth $2,000, a profit of $1,160, and the break-even is $104.20. The chart shows the classic hockey-stick shape, with the strike marked. Honest limits: this shows value at expiry only. Before then, option prices also include time value, which depends on volatility, interest rates and time left (the Greeks), so a position can show a loss even when the stock moves your way. Commissions, early assignment, dividends and multi-leg strategies aren't modelled. Options can lose their whole value quickly. This isn't investment advice. The stock profit calculator and the probability calculator are related.

Frequently asked questions