Options Profit Calculator
Calculate profit and loss for call and put options. Enter strike price, premium, and stock price at expiration to see P&L, ROI, break-even, and a full price table. Supports long and short positions. Works with any currency.
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How to Use This Calculator
Tab "Call Option"
Select Buy or Sell, then enter the strike price, premium per share, number of contracts, and the stock price at expiration. The calculator shows your profit or loss, ROI, break-even price, and a P&L table at multiple stock prices so you can see how your position performs across a range of outcomes.
Tab "Put Option"
Same setup as the call tab but for puts. Select your position, enter the strike, premium, contracts, and expected stock price. Useful for hedging a long stock position or speculating on a price decline. The P&L table shows results from strike-30 to strike+30.
Tab "Break-Even & Risk"
Enter a strike price, premium, and number of contracts to see a side-by-side comparison of call vs put options. The summary table shows break-even prices, maximum profit, maximum loss, and risk/reward ratios for both option types under the same parameters.
The Formulas
P&L = max(Stock Price − Strike, 0) × 100 × Contracts − Premium × 100 × Contracts
Long put P&L:
P&L = max(Strike − Stock Price, 0) × 100 × Contracts − Premium × 100 × Contracts
Short (sold) options:
Reverse the signs. Seller receives premium upfront and pays intrinsic value at expiration.
Break-even (call): Strike Price + Premium per Share
Break-even (put): Strike Price − Premium per Share
Max loss (long): Total premium paid = Premium × 100 × Contracts
Max profit (long call): Unlimited (stock can rise indefinitely)
Max profit (long put): (Strike − Premium) × 100 × Contracts
ROI: P&L / Total Premium Paid × 100%
All calculations assume expiration-day settlement. No time value, implied volatility, or Greeks are modelled. Results are pre-tax estimates.
Worked Examples
Example 1 — Long call: $150 strike, $5 premium, stock rises to $170
You buy 1 call option contract with a $150 strike price, paying $5 per share in premium. At expiration, the stock is at $170.
The stock rose $20 above the strike. After subtracting the $500 premium, the net profit is $1,500 — a 300% return on the premium invested.
Example 2 — Long put: $100 strike, $3 premium, stock drops to $85
You buy 1 put option contract with a $100 strike price, paying $3 per share. At expiration, the stock is at $85.
The stock dropped $15 below the strike. After the $300 premium, the net profit is $1,200 — a 400% return. The put provided leveraged downside exposure.
Example 3 — Option expires worthless: stock stays at $145
You bought 1 call option with a $150 strike at $5 premium. At expiration, the stock is $145 — below the strike price.
The option expired out of the money. The entire $500 premium is lost — the maximum possible loss for a long option. This is why position sizing matters.