Option Breakeven Calculator
Free Option Breakeven Calculator to compute breakeven prices at expiration for long calls, long puts, covered calls, and cash-secured puts. See max profit, max loss, and compare strategies instantly.
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How It Works
Select the option strategy, enter the strike price and the premium per share (what you paid to buy or received to sell). For covered calls, also enter the stock purchase price. Optionally set the number of contracts: each contract represents 100 shares. The calculator instantly computes the breakeven price at expiration and the maximum profit and loss. Before opening a position, compare a long call at a lower strike with higher premium against a higher strike with lower premium to see which offers a better outcome at your target stock price. Model assignment scenarios for cash secured puts by checking whether the breakeven sits above or below your desired entry price. Spread strategies combine two legs; this tool focuses on single leg positions so interpret results accordingly when you layer hedges. Implied volatility and time to expiration affect live mark to market but breakeven at expiry depends only on strike and net premium.
Each strategy has a unique risk reward profile. Long options have limited risk (premium paid) and unlimited or high upside. Covered strategies reduce your breakeven but cap your upside. The breakeven tells you the exact price the underlying must reach at expiration to avoid a loss. For income strategies, compare the covered call breakeven against simply holding shares: the premium collected lowers your effective cost basis but forfeits gains above the strike. Cash secured put sellers should confirm they are comfortable owning the stock at the effective purchase price (strike minus premium received). Contract multipliers scale every dollar figure by 100 shares per contract. Early assignment before ex dividend can alter covered call economics when time value is minimal.
Entering incorrect premiums or strikes is the most common input error when using Option Breakeven Calculator. For covered calls and cash secured puts, the stock purchase price drives the breakeven calculation: entering a purchase price far from current market can distort risk reward ratios. Cross check results against your broker platform before executing orders, especially for multi leg strategies where Option Breakeven Calculator evaluates one position at a time.
Use Option Breakeven Calculator whenever inputs change: after market moves, new contributions, or revised personal assumptions. Bookmark the page for quick reruns without installing software.
Step by step
- Open Option Breakeven Calculator and enter your current inputs.
- Review calculated outputs and summary tables.
- Adjust assumptions and compare scenarios side by side.
Worked example
Select the option strategy, enter the strike price and the premium per share (what you paid to buy or received to sell). Enter the sample inputs described in How it works to reproduce the scenario step by step.
Adjust one input at a time to see sensitivity. Option Breakeven Calculator updates instantly so you can stress test optimistic and conservative assumptions before acting.
When to use this calculator
Reach for Option Breakeven Calculator when compute breakeven prices at expiration for long calls, long puts, covered calls, and cash-secured puts.. It suits quick what if analysis before trades, allocation changes, or plan updates.
Pair with related tools when the decision spans taxes, liquidity, or multi year projections beyond what one formula captures.
Common mistakes
Copying outputs without checking input units or stale market prices is a frequent error with Option Breakeven Calculator. Confirm tickers, percentages, and dates before acting.
Running a single baseline scenario ignores tail risks. Stress test with conservative inputs and compare against related tools listed below when the decision is material.
The Formula
Call breakeven = Strike + Premium
Put breakeven = Strike − Premium
Call Profit = max(Price − Strike, 0) − Premium
Put Profit = max(Strike − Price, 0) − Premium
Call Max Profit = Unlimited
Put Max Profit = Strike − Premium
Call/Put Max Loss = Premium paid
Breakeven is the stock price at expiration where P and L equals zero. Does not account for transaction costs, early exercise, assignment before expiration, or dividends. Profit and loss is per share at expiration. American options may be exercised early when deep in the money, which can alter realized outcomes before the expiration breakeven date.
Limitations and assumptions
Breakeven is the stock price at expiration where P and L equals zero. Does not account for transaction costs, early exercise, assignment before expiration, or dividends. Profit and loss is per share at expiration. American options may be exercised early when deep in the money, which can alter realized outcomes before the expiration breakeven date. Option Breakeven Calculator does not replace personalized advice. Fees, slippage, account specific rules, and behavioral constraints may change real world outcomes.
Key terms
- What is a long call breakeven and how is it calculated
- A long call gives you the right to buy 100 shares at the strike price.
- How does a covered call limit both my risk and my upside
- A covered call caps your upside at the strike price but lowers your breakeven.
- Model assumption
- The breakeven is the same formula (strike minus premium), but the risk reward profile differs.
Compare alternatives
Option Breakeven Calculator focuses on expiration payoff while Options Greeks calculator shows how delta and theta shift your position day to day. Run both tools to cover static break evens and dynamic risk before placing an order.
Internal links on portfolios.tools help you chain calculators: run Option Breakeven Calculator first, then validate edge cases with a specialized tool from the related section below.
FAQ
What is a long call breakeven and how is it calculated?
A long call gives you the right to buy 100 shares at the strike price. The breakeven is the strike plus the premium you paid. If the stock closes above the breakeven at expiration, you profit. Below the breakeven, you lose the premium paid. At expiration only intrinsic value remains: if the stock finishes at $105 on a $100 strike with $3 premium, intrinsic value is $5 and your profit is $2 per share. Time value decays to zero, so breakeven analysis assumes you hold through expiration unless you plan to close early based on delta and theta.
How does a covered call limit both my risk and my upside?
A covered call caps your upside at the strike price but lowers your breakeven. If the stock rallies past your strike, you keep the premium but miss further gains. The maximum profit is reached at or above the strike price at expiration. Example: you bought stock at $95, sold a $100 call for $2 premium, breakeven is $93. If the stock closes at $110, you earn $7 per share ($5 appreciation plus $2 premium) instead of $15 from holding alone. Rolling the call before expiration can recover some upside if you accept additional assignment risk.
What's the difference between a long put and a cash-secured put breakeven?
The breakeven is the same formula (strike minus premium), but the risk reward profile differs. A long put has limited risk (premium paid) and high but capped profit. A cash secured put has limited profit (premium received) and potentially large loss if the stock goes to zero. Put sellers use breakeven to set their effective entry price: a $90 strike with $2 premium received means you buy at $88 if assigned. Long puts hedge existing stock positions when breakeven sits below your cost basis. Protective puts cost premium but define a floor near strike minus premium paid.
What is the maximum loss for each option strategy?
For long calls and long puts, max loss is exactly the premium paid. For covered calls and cash secured puts, max loss depends on the stock purchase price or the strike minus premium: it can be substantial if the underlying drops sharply. A covered call on stock bought at $100 with a $95 strike call sold for $1 still faces nearly $99 downside if the stock collapses. Margin requirements differ: long options need premium only, while cash secured puts require collateral equal to the strike times 100 shares per contract.
How do I account for multiple contracts?
Multiply by the number of contracts: each contract represents 100 shares. For example, a long call with a $3 premium and 5 contracts has a max loss of $3 times 5 times 100 equals $1,500. The calculator does this multiplication automatically. Portfolio level planning: five contracts on a $2 wide spread between strike and breakeven means you need a $10 move above breakeven to earn $1,000 before costs. Always confirm your broker's contract multiplier matches 100 shares for standard equity options. Index and mini contracts use different multipliers listed in the contract specifications.
How do I use this option breakeven calculator on phone or tablet?
Open portfolios.tools in your mobile browser, navigate to Option Breakeven Calculator, enter your strategy and inputs, and results compute instantly with the same formulas as desktop. No app installation required. Optional localStorage may remember inputs on your device when enabled in browser settings.
Where is my data stored when I use Option Breakeven Calculator?
Nowhere on our servers. Calculations execute locally in your browser. Optional localStorage saves form fields on your device only and never transmits portfolio numbers over the network.
Should I rely on Option Breakeven Calculator for tax or legal decisions?
No. Option Breakeven Calculator provides educational math only. Tax law, account rules, and personal circumstances vary. Consult a qualified tax or legal professional before transactions with material consequences.
Related Tools
Pair with Options Greeks calculator to see how delta and theta move your breakeven before expiration. Use Black Scholes Pricer to estimate fair premium on new trades. Trailing Stop Loss tool helps manage stock positions that back covered calls or cash secured puts.