Options Profit Calculator
Chart the profit or loss of a call or put option, bought or sold, at different prices on expiry.
About the Options Profit Calculator
Choose call or put, buying or selling, then enter the strike, premium, number of contracts, shares per contract and the price at expiry. The calculator gives the profit or loss, the breakeven price and the maximum gain and loss, with a payoff chart.
A call gains when the price rises above strike + premium; a put gains when it falls below strike − premium. Writing (selling) an option collects the premium but takes on the opposite payoff. This shows value at expiry only; before expiry, time value and volatility matter too.
The formula
Long call: max(0, S − K) − premium; long put: max(0, K − S) − premium (per share)
Worked example
Buying 1 call (100 shares) with a 100 strike for a 4 premium; the stock ends at 110
- Value at expiry: (110 − 100) × 100 = 1,000
- Minus the 400 premium: profit 600
- Breakeven 104; the most you can lose is 400
Questions people ask
Why is a short call risky?
Losses grow without limit as the price rises.
How many shares per contract?
100 for US equity options; Indian F&O uses exchange-set lot sizes.