OPTIONS
Options Profit Calculator
Pick a strategy, enter the strikes and premiums, and see exactly what the position is worth at expiration — the payoff diagram, both breakevens, and the true max profit and loss, before you place the trade.
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OPTIONS PROFIT CALCULATOR
LiveMAX PROFIT
$310.00
MAX LOSS
-$190.00
BREAKEVEN
101.9
underlying price at expiration
NET DEBIT
$190.00
premium paid up front
Values at expiration only — before expiry, time value and implied volatility move the P&L, so the live mark will differ from this diagram. Commissions and assignment fees not included. One contract = 100 shares.
call at expiry = max(S − K, 0) − premium · put = max(K − S, 0) − premium · position = Σ legs × 100 × contractsTHE PICTURE
A payoff diagram is the whole trade in one line
Every options position, however complex, collapses at expiration into a piecewise-straight line over the underlying's price. Learning to read that line is learning options.
Three features tell you everything. Where the line crosses zero — the breakevens — is where the underlying must actually go for you to make money, and it’s almost never the strike: a $100 call bought for $3.20 needs the stock above $103.20, not $100. Where the line goes flat, your P&L stops responding — that’s a cap, created by a sold option or by the stock hitting zero. And the slope of each segment is your effective exposure in that price region: how many dollars you make or lose per dollar of movement.
Debit and credit strategies are mirror images on the diagram. Buy premium and your line starts underwater by exactly what you paid — you need movement to climb out, and your loss is capped at that debit. Sell premium and you start above water by what you collected — you need the move not to happen, and the premium is all you can make. Neither is better; they are opposite bets on whether the market’s priced-in move is too big or too small.
WORKED EXAMPLE
A bull call spread, priced end to end
The default inputs above are a real example — here's the arithmetic behind every number on the diagram.
Buy the $100 call for $3.50, sell the $105 call for $1.60: the net debit is $1.90 per share, or $190 for one contract — and that $190 is the most you can lose, no matter what the stock does. Breakeven is the long strike plus the debit: $101.90. Max profit is the $5 strike width minus the $1.90 debit — $3.10 per share, $310 per contract — earned in full anywhere above $105 at expiration. Risking $190 to make $310 is about 1.6:1 on a move you only need to be modestly right about.
Compare that with buying the $100 call outright: $350 at risk, a $103.50 breakeven, and unlimited upside you only get paid for on a big move. The spread gives up the home run to nearly halve the cost and pull the breakeven $1.60 closer — defined risk on both sides in exchange for a ceiling. That trade-off, made deliberately, is most of what separates structured options trading from lottery tickets. When you take these trades live, a journal that tracks each leg’s P&L shows whether your spreads actually capture the edge the diagram promised.
FAQ
How do I read an options payoff diagram?＋
The horizontal axis is the underlying's price at expiration; the vertical axis is your profit or loss. Where the white line sits above the dashed zero line you make money, below it you lose. Kinks happen at strikes, the white dots mark breakevens, and a flat segment means your P&L stops changing — your risk or reward is capped there.
What's the difference between a debit and a credit strategy?＋
A debit strategy (long calls, puts, spreads you buy, straddles) costs premium up front — that premium is usually your max loss, and you profit from movement. A credit strategy (covered calls, cash-secured puts) collects premium up front — that premium is usually your max profit, and you profit from the move not happening.
Why does a bull call spread cap both profit and loss?＋
You buy one call and sell another at a higher strike. The bought call caps your loss at the net debit paid; the sold call gives up all upside above its strike, capping profit at the strike width minus the debit. You're trading unlimited upside for a much cheaper entry — which lowers your breakeven too.
Why doesn't this calculator show P&L before expiration?＋
Before expiry an option's price includes time value, which depends on implied volatility, time remaining, and interest rates. Modeling that requires a pricing model and IV inputs; the expiration payoff needs neither and is exact. This tool deliberately shows the expiration picture only — the live mark will differ.
When is max profit 'unlimited'?＋
Whenever the position keeps gaining as the underlying rises without a sold call capping it: long calls, straddles, and strangles. 'Unlimited' downside profit doesn't exist because a stock can't go below zero — a long put's max profit is strike minus premium, reached at zero.
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OpenThe diagram is the plan. The journal is the proof.
TerraTrade journals your options trades automatically — legs matched, premiums and fees included — so you can compare every realized P&L against the payoff you planned.
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