Free Options Profit Calculator — Calls and Puts P&L Online

Options math is straightforward once you break it down: strike price, premium, and where the stock ends up at expiration. But doing it in your head while evaluating a trade leads to mistakes. The calculator shows your exact P&L, breakeven, max profit, and max loss before you commit any money.

Call Option Profit Formula

Profit = (Stock Price at Expiry - Strike Price - Premium) x Contracts x 100

You profit when the stock rises above Strike + Premium (your breakeven point). Below the strike, the option expires worthless and you lose the premium.

Scenario	Strike	Premium	Stock at Expiry	P&L per Contract	ROI
Big winner	$150	$5.00	$180	+$2,500	+500%
Moderate win	$150	$5.00	$165	+$1,000	+200%
Breakeven	$150	$5.00	$155	$0	0%
Small loss	$150	$5.00	$152	-$300	-60%
Max loss	$150	$5.00	$140	-$500	-100%

Put Option Profit Formula

Profit = (Strike Price - Stock Price at Expiry - Premium) x Contracts x 100

You profit when the stock drops below Strike - Premium (your breakeven). Above the strike, the option expires worthless.

Scenario	Strike	Premium	Stock at Expiry	P&L per Contract	ROI
Big winner	$150	$4.00	$120	+$2,600	+650%
Moderate win	$150	$4.00	$138	+$800	+200%
Breakeven	$150	$4.00	$146	$0	0%
Small loss	$150	$4.00	$148	-$200	-50%
Max loss	$150	$4.00	$160	-$400	-100%

Key Terms the Calculator Uses

Term	What It Means	Example
Strike price	Price at which you can buy (call) or sell (put) the stock	$150 strike = right to buy at $150
Premium	Price you pay for the option, per share	$5.00 premium = $500 per contract
Breakeven	Stock price where you neither profit nor lose	Call: $150 + $5 = $155 breakeven
Max profit (calls)	Theoretically unlimited — stock can rise forever	Stock goes from $150 to $300 = huge profit
Max profit (puts)	Strike - Premium, x 100. Stock can only drop to $0	$150 - $4 = $146/share max = $14,600
Max loss	Premium paid, x 100. Option expires worthless	$5 premium x 100 = $500 max loss
Contracts	Each contract = 100 shares	3 contracts = 300 shares exposure

When to Use This Calculator

• Before entering a trade: Check your breakeven, max loss, and required stock move to profit
• Comparing strikes: A $145 call costs $8 and a $155 call costs $3. Which gives better ROI at your target price? The calculator answers this in seconds
• Position sizing: If your max loss per trade is $500, and the option premium is $4.00 ($400/contract), you can buy 1 contract. At $2.50 premium ($250/contract), you can buy 2
• Evaluating risk/reward: A trade risking $500 (premium) to potentially make $2,000 (if stock hits target) is a 4:1 reward-to-risk ratio

Common Mistakes the Calculator Prevents

• Forgetting the premium: The stock moved from $150 to $160. "I made $10!" No — you made $10 minus the $5 premium = $5 profit per share
• Ignoring breakeven: A $5 premium on a $150 call means the stock must reach $155 just to break even. A 3.3% move before you make a single dollar
• Miscounting contracts: 5 contracts at $3 premium = $1,500 total risk, not $300. Each contract is 100 shares

Related Trading Calculators

• Options Profit Calculator — calls and puts P&L
• Stock Profit Calculator — stock trade P&L
• Position Size Calculator — risk-based position sizing
• Compound Interest Calculator — long-term growth