Options Profit Calculator
Works out what an option position is worth at expiry, and nothing else. Enter the strike, the premium paid or received, the number of contracts and a price for the underlying, and you get the break-even, the most the position can make, the most it can lose, the profit or loss at that price, and a payoff diagram. It covers a single long or short call or put, a covered call, and vertical spreads in calls or puts. It ignores time value before expiry, early assignment, dividends and commissions, and it takes no view on whether a position is worth holding.