Free Options Profit and Loss Calculator
Calculate the profit or loss on a single-leg options trade at expiration. Pick option type and side (buy/sell), enter strike, premium paid/received, number of contracts, and the final underlying price — the calculator returns the P&L including break-even.
1 contract = 100 shares
P&L at expiration
$750.00
Long call at $100, premium $2.50, underlying $110
Break-even price
$102.50
Total cost / premium received
$250.00
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How to use this calculator
At expiration:
- Long call: max(0, S − K) − premium, per share. Multiply by 100 × contracts.
- Long put: max(0, K − S) − premium, per share.
- Short call: premium − max(0, S − K). Loss can be unlimited.
- Short put: premium − max(0, K − S). Loss up to (strike × 100 × contracts) − premium.
Where S = underlying price at expiration, K = strike. Each contract = 100 shares.
Break-even (long call) = strike + premium. Break-even (long put) = strike − premium. The opposite for short positions.