Options Profit/Loss Calculator

Every options position, from a single call to a four-leg iron condor, has a profit/loss profile at expiration that's fully determined by its legs: each option's type, strike, premium, and whether you're long or short. This calculator builds that profile for any combination of up to 4 legs and shows the numbers that matter most: how much the position costs (or pays) to open, where it breaks even, and the maximum profit and loss.

Because an option's payoff at expiration is a simple kink at its strike price, the whole position's profit/loss is piecewise-linear in the underlying price. That means breakevens and max profit/loss here are computed exactly from that structure, not approximated from a chart.

How does this calculator work?

Add each leg of your position: whether you're buying (long) or selling (short), call or put, the strike price, the premium, and the number of contracts. Start from a single leg for a simple call or put, or build up to a 4-leg spread like an iron condor.

The calculator shows the net premium (a debit if you're paying to open the position, a credit if you're collecting money), every breakeven price, and the maximum possible profit and loss, reported as "Unlimited" when a leg (like an uncovered short call) leaves that side of the position theoretically uncapped.

The chart plots total position profit/loss across a range of underlying prices at expiration, so you can see the full payoff shape at a glance.

Worked example

A bull call spread: buy the $100 call for $5.00, sell the $110 call for $2.00, one contract each.

Net debit to open

$300

Breakeven

$103.00

Max profit

$700 (if stock closes at or above $110)

Max loss

$300 (if stock closes at or below $100)

How the numbers work

Buying the $100 call costs $500 and selling the $110 call collects $200, for a net cost of $300 to open the spread.

The position breaks even at $103, the long call's strike plus the $3 net cost per share. Below $100, both options expire worthless and you lose the full $300 debit; that's the max loss.

Above $110, the short call's losses exactly offset the long call's further gains, capping the position at its maximum: the $10 spread width minus the $3 debit, times 100 shares, for $700.

A defined-risk spread like this caps both your maximum gain and maximum loss at the outset. That's useful for sizing a trade with a known worst case, at the cost of giving up the unlimited upside a plain long call would have.

Build the same position leg by leg here before placing it to confirm your intended breakeven and max risk match what you expect. It's easy to get the long/short direction of a leg backwards when entering a multi-leg order.

Named structures have their own focused tools: the vertical spread, straddle or strangle, and covered call each break out the numbers for that specific trade, and any of them can be pressure-tested with a probability of profit estimate.