Options Break-Even Calculator

Calculator Form

Strategy

Primary Strike

Secondary Strike

Primary Premium

Secondary Premium

Contracts

Contract Multiplier

Commission per Contract

Extra Flat Fees

Spot Price for Evaluation

Chart Range Start

Chart Range End

Chart Step Size

Enter per-share premiums. Standard equity options often use a 100-share multiplier.

Example Data Table

Strategy	Strike Setup	Premium Setup	Contracts	Estimated Break-Even
Long Call	Call strike 100	Premium paid 4.50	1	104.50 plus fees impact
Long Put	Put strike 95	Premium paid 3.20	2	91.80 minus fees impact
Bull Call Spread	Long 100, short 110	Pay 4.50, receive 1.80	1	102.70 plus fees impact
Long Straddle	Shared strike 100	Call 4.10, put 3.90	1	92.00 and 108.00 plus fees impact

Formula Used

This calculator applies contract-adjusted payoff logic. Premiums are entered per share. Total shares equal contracts multiplied by the contract multiplier.

Long Call Break-Even: Strike + net debit per share
Short Call Break-Even: Strike + net credit per share
Long Put Break-Even: Strike - net debit per share
Short Put Break-Even: Strike - net credit per share
Bull Call Spread Break-Even: Long call strike + net debit per share
Bear Put Spread Break-Even: Long put strike - net debit per share
Long Straddle Break-Evens: Strike - net debit per share, and strike + net debit per share
Short Straddle Break-Evens: Strike - net credit per share, and strike + net credit per share
P/L at any price: Net intrinsic value of the strategy minus total debit, or total credit minus intrinsic obligation for short positions
Trading Costs: Commission per contract × contracts × legs, plus extra flat fees

How to Use This Calculator

Select the option strategy that matches your trade.
Enter the strike or strike pair for the position.
Input premiums on a per-share basis.
Add contracts, multiplier, commission, and any extra fees.
Enter a spot price to test current profit or loss.
Define a price range and step size for the payoff chart.
Submit the form to view break-even prices, risk, and scenario data.
Use the CSV or PDF buttons to export the output.

Frequently Asked Questions

1) What is an options break-even price?

It is the underlying price where total profit becomes zero after premiums, commissions, contract multiplier, and any entered fees are included.

2) Should I enter premiums per contract or per share?

Enter premiums on a per-share basis. A standard equity option often controls 100 shares, so a premium of 2.50 usually represents $250 before fees.

3) Why do some strategies show two break-even points?

Straddles combine a call and a put. Because profit can emerge on either side of the shared strike, they often have both a lower and upper break-even.

4) Can this page evaluate option spreads?

Yes. It supports bull call spreads and bear put spreads, then adjusts net debit, break-even, maximum profit, and maximum loss using both option legs.

5) Are trading costs included in the calculations?

Yes. Commission per contract is multiplied by the contract count and number of legs, then extra flat fees are added before the results are shown.

6) Why is max loss unlimited for some short strategies?

Short calls and short straddles can face theoretically unlimited upside risk because the underlying price can keep rising. The calculator labels that clearly.

7) What does the payoff chart represent?

The chart plots position profit or loss across the price range you enter. Changing the range or step updates the scenario curve and table.

8) Is this calculator a trading recommendation?

No. It is an analytical aid for estimating payoff structure. Assignment risk, taxes, slippage, volatility, and market conditions can change real outcomes.