How do I add multiple legs to a strategy?

Click "Add leg" to add another option to the strategy. Each leg has a type (call/put), strike, premium paid or received, direction (long/short), and quantity. The calculator combines all legs into a single payoff diagram. Common multi-leg strategies: vertical spread (2 legs), straddle (2 legs), iron condor (4 legs), butterfly (3 or 4 legs).

What is the difference between long and short?

Long means you bought the option (paid the premium). Short means you sold it (received the premium). For a long call, you profit if the underlying rises above the strike + premium. For a short call, you profit if it stays below — but your loss is potentially unlimited.

What are break-even points?

Break-even points are the underlying prices at which the strategy makes exactly zero profit at expiration. A long call has one break-even (strike + premium). A long straddle has two (strike ± total premium). A condor has two. The calculator finds these automatically and shows them in the results.

Does this account for commissions or fees?

No. The diagram shows the theoretical P&L of the option contracts themselves. For US retail equity options at most modern brokers, commissions are very low (often $0 plus exchange fees). Add your expected total commissions to your loss numbers if commissions matter for your size.

What about early exercise and assignment risk?

This calculator shows the payoff at expiration only. American-style options (most US-listed equity options) can be exercised any time before expiration, and short positions can be assigned. Short options near or in-the-money carry assignment risk — especially short calls right before ex-dividend dates and deep ITM short puts.

Can I see what the position looks like before expiration?

This calculator shows the expiration payoff only. To see the position value at any earlier time, you need to price each leg at the current implied volatility and time-to-expiry — that requires the Black-Scholes calculator. Many traders use the expiration payoff as the worst-case visual and assume the current value will lie somewhere between current premium and expiration value depending on time decay.

How do I figure out the premium to enter?

Use the option chain on your broker. The mid of the bid-ask is a good estimate; for tight spreads on liquid options it is approximately what you will fill at. Enter that mid as the premium. For multi-leg strategies, sum the legs (long premiums positive, short premiums negative) to get the net debit (cost) or net credit (proceeds).

What strategies should I model first?

Common ones to learn the calculator: long call (1 leg), bull call spread (long lower-strike call + short higher-strike call), long straddle (long call + long put at the same strike), iron condor (4 legs: short put spread + short call spread). Each illustrates a different P&L shape.

Is this calculator free?

Yes. Free for unlimited human use; backed by the QuantOracle API which provides 1,000 free calls per IP per day with no signup or API key.

Options Profit Calculator

Build single- and multi-leg option strategies and see the exact profit/loss profile at expiration. Calls, puts, longs, shorts, any number of legs. Break-even points and max profit/loss computed automatically.

Ready to build your strategy

Set the spot price, add option legs (calls, puts, long or short), and click Calculate. You'll see the full payoff diagram at expiration, break-even points, and max profit / max loss for any combination of legs.

Default starts with a single long call. Add legs to build verticals, condors, strangles, butterflies, or any custom structure.

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Frequently asked questions

An options profit calculator (also called a payoff diagram) shows the profit or loss of an options position at expiration across a range of underlying prices. It tells you exactly where you make money, where you lose money, and where the break-even points are. For multi-leg strategies (spreads, straddles, condors), the diagram shows the combined P&L of all legs at expiration.

Reading a payoff diagram

A payoff diagram plots the strategy's profit (vertical axis) against the underlying price at expiration (horizontal axis). Where the curve sits above zero, you make money; below zero, you lose money. The points where it crosses zero are your break-evens.

Single-leg shapes

Long call: hockey-stick — flat loss equal to the premium below the strike, then rising linearly above. Unlimited upside.
Long put: mirror image — rising linearly as the underlying falls, capped loss at the premium for any price above the strike.
Short call: capped profit (the premium received), then losing linearly and unlimited above the strike.
Short put: capped profit, losing linearly below the strike. Loss is large but bounded (stock can only go to zero).

Common multi-leg strategies

Bull call spread (2 legs): long call at lower strike + short call at higher strike. Capped profit, capped loss. Cheaper than a long call but caps upside.
Bear put spread (2 legs): long put at higher strike + short put at lower strike. Mirror-image bull spread for downside views.
Long straddle (2 legs): long call + long put at the same strike. Profits from large moves either direction. Loses if the underlying stays near the strike.
Long strangle (2 legs): like a straddle but with different strikes (call OTM above, put OTM below). Cheaper than a straddle but needs a bigger move to profit.
Iron condor (4 legs): short put spread + short call spread. Profits if the underlying stays in a range. Defined max profit and loss.
Butterfly (3 legs at 3 strikes): peaks at the middle strike, loses if the underlying moves much in either direction.

What the diagram does NOT show

Pre-expiration P&L. The diagram is at expiration only. Before expiration, time decay (theta), volatility changes (vega), and the underlying movement all interact. The current value lies somewhere between the entry premium and the expiration value.
Volatility shifts. If implied volatility changes between now and expiration, the value of unexpired options changes. The diagram assumes you hold to expiration.
Early assignment risk. Short options can be assigned at any time. The diagram assumes you hold the position cleanly to expiration.
Commissions and slippage. Real fills are slightly worse than mid; for high-leg strategies, commissions add up.

Where to get the premium values

From the option chain on your broker. The mid of the bid-ask is a reasonable estimate for liquid options. Solve for IV using the implied volatility calculator if you want to compare market premiums to model fair value, and use the Black-Scholes calculator if you want to price a leg theoretically before checking the chain.

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