Options Profit Calculator
Long call or put P/L at expiry — intrinsic minus premium, scaled by contracts. Click any i for detail.
Option inputs
Option type
i
Type
Long call or long put at expiration. |
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|---|---|
Strike ($)
i
Strike
Exercise price. |
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Premium paid ($/share)
i
Premium
Cost of the option per share. |
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Underlying at expiration ($)
i
Spot
Spot price at expiry. |
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Contracts
i
Contracts
Each contract = 100 shares. |
How to use this calculator
- Choose long call or long put.
- Enter strike, premium, and expiry spot.
- Set contract count.
- Read P/L and breakeven.
Results explained
At expiration, a long call is worth max(0, spot − strike) and a long put max(0, strike − spot). Subtract the premium paid for per-share P/L, then multiply by 100 × contracts. Early exercise, dividends, and spreads are not modeled.
Quick reference: long options at expiry
P/L = (intrinsic − premium) × 100 × contracts.
| Item | Detail |
|---|---|
| Call breakeven | strike + premium |
| Put breakeven | strike − premium |
| OTM expiry | Loss = full premium |
| Multiplier | 100 shares per contract |
Educational worksheet — options can lose 100% of premium.
How the estimate is built
call intrinsic = max(0,S−K); put = max(0,K−S); P/L = (intrinsic − premium)×100×n.
Example scenario
Long call K=100, premium $3.50, S=110, 1 contract → $650 profit.
FAQ
What about short options?
Not modeled — payoff signs flip and risk differs.
Before expiration?
Time value remains; this page is expiry-only.
Commissions?
Ignored.
American vs European?
Expiry intrinsic math is the same sketch used here.