Bull Call Spread Calculator

Calculator Inputs

Current Underlying Price

Long Call Strike

Short Call Strike

Premium Paid for Long Call

Premium Received for Short Call

Number of Contracts

Contract Multiplier

Commission per Contract

Custom Expiry Price

Chart Minimum Price

Chart Maximum Price

Chart Price Step

Example Data Table

Current Price	Long Strike	Short Strike	Long Premium	Short Premium	Contracts	Expected Outcome
$105.00	$100.00	$110.00	$7.20	$2.80	1	Moderately bullish outlook
$52.50	$50.00	$57.50	$4.40	$1.65	3	Defined risk and capped gain
$215.00	$210.00	$225.00	$11.35	$5.10	2	Lower cost than naked long call

Formula Used

Net Debit per Share = Long Call Premium − Short Call Premium

Total Net Debit = (Net Debit per Share × Multiplier × Contracts) + Commission

Maximum Profit = ((Short Strike − Long Strike − Net Debit per Share) × Multiplier × Contracts) − Commission

Maximum Loss = Total Net Debit

Breakeven Price = Long Strike + Net Debit per Share

Profit/Loss at Expiration = ((max(0, Stock Price − Long Strike) − max(0, Stock Price − Short Strike) − Net Debit per Share) × Multiplier × Contracts) − Commission

This setup suits a moderately bullish outlook when you want limited downside, lower entry cost than a standalone long call, and predefined upside.

How to Use This Calculator

Enter the current underlying price for the asset you are analyzing.
Add the lower strike for the purchased call and the higher strike for the written call.
Provide both option premiums, the number of contracts, and the contract multiplier.
Include any commission per contract if you want more realistic profit and loss estimates.
Set the price range and step to generate the expiration payoff chart and scenario table.
Optionally enter a custom expiry price to see the exact projected result at one target price.
Click the calculate button to show the results section above the form.
Use the CSV and PDF buttons to export the generated scenario data and summary.

FAQs

1. What is a bull call spread?

A bull call spread is an options strategy using one purchased call and one sold call with a higher strike. It aims to profit from a moderate price rise while keeping both cost and downside limited.

2. When does this strategy make sense?

It fits a moderately bullish outlook. Traders often choose it when they expect upside, but not a huge breakout, and want lower upfront cost than buying a call outright.

3. How is maximum profit calculated?

Maximum profit equals the difference between the strikes, minus the net debit paid, multiplied by contract size and contracts. It is reached when the asset finishes at or above the short strike at expiration.

4. Why is the maximum loss limited?

The maximum loss is capped because you pay a known net debit to enter the spread. If both calls expire worthless, that debit, plus any trading costs, represents the full loss.

5. What does breakeven mean here?

Breakeven is the price where the long call’s intrinsic value offsets the net debit. Above that price, the position starts generating profit at expiration, assuming no extra fees beyond those entered.

6. Does this calculator include commission?

Yes. You can enter commission per contract. The tool adds that cost into debit, maximum loss, maximum profit, and scenario calculations for more practical planning.

7. Is the chart based on expiration values only?

Yes. The payoff chart models expiration outcomes, not interim market values. It does not estimate time value, implied volatility changes, or early exit pricing before expiration.

8. Can this replace professional financial advice?

No. This calculator is an educational planning tool. Real trading decisions should consider liquidity, taxes, assignment risk, volatility, and personal risk tolerance before placing any options trade.