Strangle Calculator
Use this free strangle calculator to model your volatility trade before you place it. Enter your out-of-the-money call and put strikes and premiums to instantly see max profit, max loss, both breakeven prices, and a full P&L diagram.
How to use the strangle calculator
Enter your two strikes and both premiums above and the calculator updates in real time. Here is what each input does.
Enter the call strike
Enter the strike of the out-of-the-money call you are buying. This strike sits above the current stock price. The higher you go, the cheaper the call but the larger the required upside move.
Enter the put strike
Enter the strike of the out-of-the-money put you are buying. This strike sits below the current stock price. The wider the gap between your two strikes, the larger the move needed to hit breakeven.
Enter both premiums paid
Enter the per-share premium paid for the call and the per-share premium paid for the put. The sum is your total debit and the most you can lose on the trade.
Review your results
The P&L diagram updates instantly. Read off both breakeven prices, the flat loss zone between your two strikes, and how quickly the position profits once the stock clears a breakeven.
Understanding the long strangle strategy
A long strangle is a close cousin of the long straddle, with one key difference: the call and put use different strike prices rather than the same strike. The call is bought out-of-the-money above the stock price, and the put is bought out-of-the-money below it. Because both options start with no intrinsic value, the combined premium is lower than a straddle on the same stock. The tradeoff is that the stock needs to make a larger move to reach either breakeven price.
The loss zone of a strangle is the band between the two strikes. If the stock closes anywhere inside that range at expiration, both options expire worthless and you lose your full debit. The wider you set your strikes, the cheaper the trade but the bigger the required move. Narrowing the strikes toward the current price pushes the cost higher and brings the breakevens closer in, eventually approaching a straddle when both strikes converge at-the-money.
Strangle vs. straddle: which one fits your trade?
The choice between a strangle and a straddle usually comes down to how much premium you are comfortable paying versus how large a move you expect. A straddle costs more and needs a smaller move to profit. A strangle costs less but requires a bigger move. Neither is universally better; the right choice depends on the size of the implied move priced into the options relative to your own expectation. The strangle calculator and straddle calculator on this site let you model both side by side before committing to a position.
Managing a long strangle
Many traders close long strangles before expiration once a profit target is reached rather than holding to the end and risking time decay. If the stock makes its move early, there is often still time value remaining in the winning leg that can be captured by closing the position. Conversely, if the trade moves against you, some traders will close the leg that is moving further out-of-the-money to recover a small amount of its remaining value before it goes to zero.
Strangle example with real numbers
Here is a worked example you can enter directly into the calculator above to see the full P&L diagram in action.
Trade setup: XYZ stock trading at $100.00 ahead of earnings
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Strangle calculator FAQ
Common questions about the long strangle strategy and how to use this calculator.
A long strangle is an options strategy where you simultaneously buy an out-of-the-money call and an out-of-the-money put on the same underlying stock with the same expiration date, but at different strike prices. The call strike is above the current stock price and the put strike is below it. You pay a net debit equal to the combined premiums and profit when the stock makes a large move in either direction past one of the two breakeven prices. If the stock closes between the two strikes at expiration, both options expire worthless and you lose the full premium paid.
On the upside, the maximum profit on a long strangle is theoretically unlimited. As the stock rises above the upper breakeven, the call gains intrinsic value without a ceiling. On the downside, profit is limited because a stock can only fall to zero. The maximum downside profit equals the put strike price minus the total debit paid, multiplied by 100 per contract. Using the example of a $95 put strike and a $4.00 total debit, max downside profit is $91.00 per share or $9,100 per contract if the stock goes to zero.
The maximum loss is the total premium paid for both the call and the put, multiplied by 100 shares per contract. This loss occurs when the stock closes anywhere between the two strike prices at expiration. Both options expire without intrinsic value, and you lose the entire debit. For example, if you paid $2.00 for the call and $2.00 for the put on a stock trading between $95 and $105, the max loss is $400 per contract. Because you are buying options, your risk is always capped at the upfront debit. You can never lose more than what you paid.
A long strangle has two breakeven prices. The lower breakeven is the put strike price minus the total debit paid. The upper breakeven is the call strike price plus the total debit paid. For example, with a $95 put, a $105 call, and a $4.00 total debit, the lower breakeven is $91.00 and the upper breakeven is $109.00. For the trade to be profitable at expiration, the stock must close below $91.00 or above $109.00. Any closing price between those two levels results in a partial or complete loss of the premium paid.
The key difference is the strike price structure. A straddle uses the same strike for both the call and the put, typically at-the-money. A strangle uses two different strikes: an out-of-the-money call above the stock price and an out-of-the-money put below it. Because both strangle legs start out-of-the-money, the combined cost is lower than a straddle on the same stock. The tradeoff is that the stock needs to make a larger move to reach either breakeven. The straddle is more expensive but profits from a smaller move. Use both calculators side by side to compare cost and required move before you enter.
Long strangles work best when you expect a large move in either direction but want to pay less upfront than a straddle. Common use cases include buying a strangle before earnings announcements, major economic events, or binary outcomes with uncertain direction. Because the options are out-of-the-money, the required move to breakeven is larger than a straddle, so strangles are better suited to situations where you expect a really large move rather than just a moderate one. As with all long options strategies, buying when implied volatility is relatively low improves your odds of profiting from both a directional move and a potential IV expansion after you enter.
This calculator is for educational and informational purposes only. Options trading involves substantial risk and is not suitable for all investors. Past performance is not indicative of future results. Always consult a licensed financial professional before making investment decisions.