Call Option Calculator
Enter the asset price, strike price, call price and number of contracts to see the total cost, profit or loss, return and break-even price.
Updated
Call Option Calculator
Our Call Option Calculator shows what a call option trade is worth at a given asset price. Enter the asset price, the strike price, the price of the call (the premium per share) and the number of contracts, and it works out the total cost, the profit or loss, the return on the premium and the break-even price. One contract is counted as 100 shares. It is made for new options traders, investors and finance students.
Quick answer
Call profit is (asset price − strike price) × 100 × contracts − total premium: with a share at 165, a strike of 150, a premium of 6 and 2 contracts, (165 − 150) × 200 − 1,200 = 1,800, a 150% return.
- Total cost: call price × 100 × number of contracts.
- Break-even price: strike price + call price.
- Maximum loss: the premium paid, when the asset ends at or below the strike.
- Not included: time value, implied volatility, fees and taxes.
What Is a Call Option?
A call option is a contract that gives the buyer the right, but not the obligation, to buy an asset at a fixed price (the strike price) on or before a set expiry date. The buyer pays a premium for that right. Investors usually buy calls when they expect the price of the asset to rise.
- Asset price: the market price of the underlying share or other asset.
- Strike price: the price at which the option lets you buy.
- Call price (premium): what you pay for the option, quoted per share.
- Contracts: one standard equity option contract covers 100 shares.
If the asset price ends above the strike, the option is worth the difference. If it does not, the option expires worthless and the buyer loses the premium, and nothing more.
Call Option Profit Formula
Intrinsic value
= max(0, S − K) × 100 × N
Profit = Intrinsic − Total cost
Return % = Profit ÷ Cost × 100
- S: the asset price.
- K: the strike price.
- C: the call price (premium) per share.
- N: the number of contracts, each covering 100 shares.
"max(0, S − K)" means the intrinsic value is never negative: when the asset price is below the strike you simply do not exercise. The calculator treats the asset price you enter as the price at which the option is exercised or expires.
How to Calculate Call Option Profit
You buy 2 call contracts with a strike price of 150 and pay a premium of 6 per share. The share is at 165 when the option expires:
Intrinsic = (165 − 150) × 200
= 3,000
Profit = 3,000 − 1,200 = 1,800
Return = 1,800 ÷ 1,200 × 100
= 150%
- Find the total cost. Multiply the premium by 100 and by the number of contracts: 6 × 100 × 2 = 1,200.
- Find the intrinsic value. Subtract the strike from the asset price and multiply by the 200 shares: 15 × 200 = 3,000.
- Subtract the cost. 3,000 − 1,200 = 1,800 profit.
- Find the return. Divide the profit by the cost: 1,800 ÷ 1,200 = 1.5, or 150%.
Call Option Payoff at Expiry
The same trade (strike 150, premium 6, 2 contracts, cost 1,200) at different share prices on the expiry date:
| Share price | Profit | Return |
|---|---|---|
| 140 | −1,200 | −100% |
| 150 | −1,200 | −100% |
| 153 | −600 | −50% |
| 156 | 0 | 0% |
| 165 | 1,800 | 150% |
| 180 | 4,800 | 400% |
Below the strike the loss is the same however far the share falls. Above the strike every 1 the share gains adds 1 per share, or 200 for the two contracts.
Break-Even Price of a Call Option
= 150 + 6 = 156
The break-even price is where the intrinsic value just pays back the premium. It does not depend on the number of contracts. A call can be in the money and still lose money: at 153 the option above is worth 3 per share, but it cost 6, so half the premium is lost.
Call Option Examples
One contract, small move. The share is at 200, the strike is 190, the premium is 3 and you hold 1 contract:
Intrinsic = (200 − 190) × 100
= 1,000
Profit = 1,000 − 300 = 700
Return = 700 ÷ 300 × 100
≈ 233.33%
Out of the money. The share is at 140, the strike is 150, the premium is 4 and you hold 1 contract:
Intrinsic = max(0, 140 − 150)
= 0
Profit = 0 − 400 = −400
Return = −100%
The share is below the strike, so the option has no intrinsic value and the loss is the full premium of 400.
In, At and Out of the Money
| Status | What it means for a call |
|---|---|
| In the money | Asset price is above the strike. Intrinsic value is positive. |
| At the money | Asset price equals the strike. Intrinsic value is zero. |
| Out of the money | Asset price is below the strike. Intrinsic value is zero. |
The calculator shows this as "Status". In the money is not the same as profitable: profit starts only above the break-even price.
Call Options vs Buying Shares
| Aspect | Shares | Calls |
|---|---|---|
| Capital | High | Lower |
| Most you lose | Price paid | Premium |
| Leverage | None | High |
| Expiry | None | Fixed date |
Take the main example. Buying 200 shares at 150 costs 30,000, and a rise to 165 earns 3,000, a 10% return. The two call contracts cost 1,200 and earn 1,800, a 150% return. Leverage cuts both ways: if the share slips to 140, the shares lose 2,000 (about 6.67%) and can still recover, while the calls expire worthless and lose 100% of the premium.
What the Calculator Does Not Include
- Time value. Before expiry an option usually trades for more than its intrinsic value. The calculator counts intrinsic value only.
- Implied volatility and time decay. Both move the market price of an option day to day and need a pricing model such as Black-Scholes.
- Fees and taxes. Commissions, exchange fees and tax on gains reduce the real profit.
- Contract size. It assumes 100 shares per contract. Some index, mini or adjusted contracts differ.
The result is a what-if figure for one asset price, not a forecast. It is for learning and planning and is not financial advice.
Common Mistakes
- Forgetting the 100 multiplier. A premium of 6 costs 600 per contract, not 6.
- Entering the total premium. The call price field is per share. The calculator multiplies it for you.
- Treating in the money as profit. The share must pass strike + premium before the trade makes money.
- Reading the return as certain. It holds only if the asset is at the entered price when you exercise or the option expires.
Key Terms
- Call option
- The right to buy an asset at the strike price on or before the expiry date.
- Premium
- The price paid for the option, quoted per share.
- Strike price
- The fixed price at which the option holder can buy.
- Intrinsic value
- Asset price minus strike price, or zero if that is negative.
- Break-even
- Strike price plus premium: the asset price at which profit is zero.
- Leverage
- Controlling a large position with a small outlay, which magnifies gains and losses.
How to Use the Call Option Calculator
- Enter the asset price. Type the price of the underlying asset you want to test, such as 165.
- Enter the strike price. Type the strike price of the call, such as 150.
- Enter the call price. Type the premium per share, such as 6. Do not multiply it by 100 yourself.
- Enter the number of contracts. Type how many contracts you hold, such as 2. Each one covers 100 shares.
- Read and copy the result. The profit or loss appears as you type, with the working, total call cost, intrinsic value, return on premium, break-even price and whether the call is in the money. Press Copy to copy it, or Clear or Esc to start again.
Example: asset price 200, strike price 190, call price 3 and 1 contract. The result is 700, from (200 − 190) × 100 − 300 = 700, a return of about 233.33% on a cost of 300.
Who Can Use This Calculator?
Frequently Asked Questions (FAQs)
How do you calculate the profit on a call option?
Subtract the strike price from the asset price, multiply by 100 and by the number of contracts, then subtract the total premium paid. If the asset price is below the strike, the first part is zero and the loss is the premium.
What is the profit on 2 call contracts with a strike of 150 and a premium of 6 if the share is at 165?
It is 1,800. The contracts cost 6 × 100 × 2 = 1,200 and are worth (165 − 150) × 200 = 3,000, so the profit is 3,000 − 1,200 = 1,800, a 150% return on the premium.
What is the break-even price of a call option?
It is the strike price plus the premium per share. A call with a strike of 150 bought for 6 breaks even when the asset is at 156.
What happens if the asset price is below the strike price?
The call is out of the money and its intrinsic value is zero. If it expires there, it is worthless and the buyer loses the premium paid, but nothing more.
What is the maximum loss when buying a call option?
The maximum loss for a call buyer is the total premium paid: call price × 100 × number of contracts. It happens when the asset ends at or below the strike price at expiry.
Does this calculator account for time value or implied volatility?
No. It uses intrinsic value only, based on the asset price and strike price you enter. Time decay, implied volatility and fees are not included, so an option that has not yet expired will usually trade for more than the intrinsic value shown.
Why does the number of contracts change the result so much?
A standard equity option contract covers 100 shares, so each extra contract adds 100 shares of cost and of profit or loss. The return percentage and the break-even price stay the same.
Is the return shown guaranteed?
No. It is the return if the asset is at the entered price when the option is exercised or expires. Market prices move, and the real result depends on where the asset ends and when you sell or exercise.
Is the Call Option Calculator free?
Yes. It is completely free, needs no sign-up, and can be used as many times as you like.
Sources
- Corporate Finance Institute. Call Option.
- Corporate Finance Institute. Options: Calls and Puts.
- Options Industry Council. What is an Option?.
- Options Industry Council. Options Exercise.
- Wikipedia. Call option.
- Wikipedia. Moneyness.
- Wikipedia. Option time value.
Try our Call Option Calculator to see the cost, profit and break-even price of a call before you trade.