Long Call Calculator
Calculate profit, loss and breakeven for a call option.
P/L at expiration
Example result+$1,000.00
+200% return on $500.00 cost · stock at $115.00
- Maximum loss
- −$500.00
- Breakeven at expiration
- $105.00 Stock move +5%
- Maximum profit
- Unlimited
30 days left · 30% IVBlack–Scholes estimate
Model at exitAt expiration
Net P/L in USD. Earlier values use 30% IV, 4% interest and no dividends.
Scroll sideways for all time columns
Option value $1,500.00 − position cost $500.00 = $1,000.00 net profit
The estimate uses your IV and time assumptions. Actual sale prices can differ.
How to use this calculator
Copy your call details
Enter the stock price, your strike and the premium per share. A $5 premium costs $500 for one standard 100-share contract.
Try a stock price
Change the scenario price or move the slider. Start with “At expiration” to see the payoff without time value.
Check an earlier exit
Choose “Before expiration” and set the days left and IV. Compare the estimate with expiration in the chart or price × time table.
For purchased calls with a simple cash multiplier. Prices are entered manually in USD. Taxes, bid–ask spreads and exercise funding are excluded.
Calculation methodHow a long call works
A long call is a call option you buy. It gives you the right to buy the underlying at a fixed strike price. You pay a premium for that right.
At expiration, a call is worth the stock price minus the strike, or zero if the stock is below the strike. Profit starts only after that value covers your premium and fees. Being above the strike does not always mean you made money.
Before expiration, time and implied volatility also affect the option’s value. The calculator keeps that model estimate separate from the expiration payoff.
Long call profit example
You buy one $100-strike call for $5 per share. With a 100-share multiplier and no fees, you pay $500. These are the results at expiration.
| Stock price | Call value | Net P/L |
|---|---|---|
| $95 | $0 | −$500 |
| $103 | $300 | −$200 |
| $105 | $500 | $0 |
| $115 | $1,500 | +$1,000 |
The $103 call has value, but it has not recovered the $500 premium.
How we calculate it
At expiration
Net P/L = max(S − K, 0) × Q − cost
S is the stock price at expiration, K is the strike, and Q is contracts × units per contract. Cost is premium per unit × Q + total fees. Expiration breakeven is K + cost ÷ Q. Maximum loss on the option position is the premium plus the fees you entered; upside is theoretically unlimited.
Before expiration
We use the Black–Scholes–Merton formula for a European call with a continuous dividend yield: C = S × e−qT × N(d₁) − K × e−rT × N(d₂). T is calendar days remaining ÷ 365. IV, interest and dividend yield are annualized inputs. Interest and dividend rates use continuous compounding.
d₁ = [ln(S/K) + (r − q + σ²/2)T] ÷ (σ√T), and d₂ = d₁ − σ√T. N is the standard normal cumulative distribution. Net P/L is the modeled call value × Q − cost. The premium you paid remains your cost; the model does not infer IV from it.
Reading the chart and table
The chart’s vertical axis shows total net P/L in USD and always includes zero and the maximum loss. The dashed line in the earlier-exit view shows expiration. Each time column is a separate scenario with the same IV, interest and dividend assumptions. Before expiration, the calculator estimates the stock price where the modeled sale covers the premium and fees. It also shows the expiration breakeven for comparison.
Limits of the estimate
The earlier-exit model assumes constant volatility, interest and continuous dividend yield. It does not price American early exercise, discrete dividends, jumps, bid–ask spreads or execution. For dividend-paying American calls in particular, an actual option price can differ materially. Use your broker’s quotes for an executable price.
All fields are manual inputs. The sample 30% IV and 4% interest rate are examples, not current market data. Amounts are displayed to two decimal places; calculations use unrounded values. The model supports up to 3,650 days and total modeled amounts up to 1 trillion.
Model references
OIC: long call payoff and risks
OIC: pricing model inputs and limitations
Cboe: theoretical option pricing
Last updated
Long call questions
How do I calculate long call profit?
At expiration, subtract the strike from the stock price, with a minimum option value of zero. Multiply by the units controlled, then subtract the premium paid and total fees. One $100-strike call bought for $5, with 100 shares and no fees, makes $1,000 at a $115 stock price.
Why enter premium per share?
Standard U.S. equity option quotes are usually per share. A quote of $5 with a 100-share multiplier costs $500 per contract. Enter 5 in Premium paid and 1 in Contracts, then check Total position cost.
Can I lose more than the premium?
For the purchased call itself, loss is limited to the premium plus applicable fees. Exercising can create a stock position with additional capital requirements and subsequent stock risk. This calculator does not model that stock position.
Can I profit before the stock reaches breakeven?
Yes. Before expiration, the option may still have time value. Compare the modeled breakeven at exit with the breakeven at expiration. The actual sale price, premium paid and fees determine your realized result.
Do I need an expiration date or a ticker?
The expiration payoff depends on the final stock price, strike, premium, contract size and fees. An earlier-exit estimate also needs calendar days remaining and pricing assumptions. Enter those manually; this calculator does not fetch a live option chain or validate contract dates.
Does it work for LEAPS or 0DTE?
You can model a long-dated call with up to 3,650 calendar days remaining. At expiration, the payoff formula is the same for 0DTE. The earlier-exit mode has a minimum of one whole day; it does not model intraday 0DTE pricing.
How is this different from the options profit calculator?
This tool focuses on buying calls and adds time and IV scenarios before expiration. Use the Options Profit Calculator to compare calls, puts and debit spreads at expiration.
About the author
Demetris Makrides
Chief Commercial Officer at Quadcode, with over 8 years of experience in dealing and market making.