Free Tool
Options Profit Calculator
Enter an option and see its payoff at expiration. Choose a call or put, buying or selling, then set the strike and premium. The chart plots your profit and loss across every underlying price, and marks breakeven, maximum profit, and maximum loss.
Net debit (cost)
$500
Breakeven
$105.00
Max profit
Unlimited
Max loss
−$500
Buying 1 call option at a $100 strike for a $5 premium costs $500 (1 × 100 shares). This position breaks even at $105.00 at expiration, and would be worth −$500 if the stock finished at today’s $100. Figures exclude commissions, fees, taxes, and early assignment.
How to Use It
- 1. Pick the option type — a call (right to buy) or a put (right to sell).
- 2. Choose your side — buying the option (long) or selling it (short).
- 3. Enter the strike and premium — the premium is the price per share; one contract is 100 shares.
- 4. Read the diagram — the green zone is profit, the red zone is loss, and the dashed line marks breakeven. Hover to read the exact P/L at any price.
How the Payoff Is Calculated
At expiration, an option is worth only its intrinsic value. The calculator uses the same arithmetic covered in the lessons:
- Call value = max(stock − strike, 0)
- Put value = max(strike − stock, 0)
- Buyer’s P/L = (option value − premium) × 100 × contracts
- Seller’s P/L = (premium − option value) × 100 × contracts
Want the intuition behind these formulas? See How Options Make or Lose Money and Basic Option Risk and Reward Profiles.
Frequently Asked Questions
How is options profit calculated?
At expiration, a call option is worth the stock price minus the strike price (never less than zero); a put is worth the strike price minus the stock price. Subtract the premium you paid if you bought the option, or add the premium you received if you sold it, then multiply by 100 shares per contract.
What is the breakeven price?
For a call, breakeven is the strike price plus the premium per share. For a put, it is the strike price minus the premium per share. The calculator marks this point where the payoff line crosses zero.
Does this calculator include commissions or taxes?
No. It shows profit and loss at expiration before commissions, fees, and taxes. It also assumes the option is held to expiration, so it does not model time value before expiry or the risk of early assignment.
What is the most I can lose?
When you buy an option, the most you can lose is the premium you paid. When you sell a naked call, the potential loss is theoretically unlimited because a stock can keep rising. When you sell a put, the maximum loss is the strike price minus the premium, multiplied by 100 shares per contract.
Educational tool only. This calculator models a single-leg option held to expiration and excludes commissions, fees, taxes, dividends, early assignment, and any time value before expiry. It is not financial advice.