Options Breakeven Price Calculator
Enter strike and premium to find the expiry break-even of a single option (buyers and sellers share the same break-even, with different risk).
Results
Fill in the inputs and click Calculate.
- Break-Even Price
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Risk disclaimer
This tool provides a theoretical break-even only, not investment advice. Naked short options carry large potential losses.
How is a single option's break-even computed?
The expiry break-even depends only on strike and premium: Call = Strike + Premium; Put = Strike − Premium.
For a buyer, break-even equals the strike where the payoff offsets the premium paid; sellers mirror the PnL with higher risk.
How to use
- Select buyer or seller to frame the risk wording.
- Choose call or put, then enter strike and premium.
- Click Calculate to see the expiry break-even.
Formula
- Call BE = Strike + Premium
- Put BE = Strike − Premium
Example
Strike 100, call premium 5 → break-even 105; above 105 buyers profit.
Strike 100, put premium 5 → break-even 95; below 95 buyers profit.
FAQ
Same break-even for buyer and seller?
Yes. Only the payoff sides mirror — sellers have the larger (potentially unlimited) risk, especially naked.
Are other costs included?
No. Fees and financing are excluded; fold them into premium for exactness at scale.