Covered Call Calculator — How Much Premium Income Can You Earn?

Covered calls are the most popular options income strategy. You already own the stock. You sell someone the right to buy it at a higher price. You collect premium income immediately. If the stock stays flat or rises modestly, you win. The calculator shows exactly how much income you can generate and what happens in every scenario.

How Covered Calls Work

1. Own 100 shares of a stock (e.g., bought at $100/share = $10,000 position)
2. Sell 1 call option with a strike above current price (e.g., $110 strike, 30 days out)
3. Collect premium immediately (e.g., $2.50/share = $250)
4. Wait until expiration

The Three Outcomes

Outcome	Stock Price at Expiry	What Happens	Your P&L
Stock stays below strike	$95-$109	Option expires worthless. Keep shares + keep $250 premium	+$250 income (can sell another call next month)
Stock hits strike exactly	$110	Shares may or may not get called. Keep premium either way	+$250 premium + $1,000 stock gain = +$1,250
Stock surges past strike	$125	Shares get called away at $110. You miss $110-$125 upside	+$250 premium + $1,000 gain = +$1,250 (missed $1,500 extra)

Covered Call Income Examples

Stock Price	Shares	Strike (5% OTM)	Monthly Premium (~2%)	Annual Income (12 months)	Yield
$50	100	$52.50	$100	$1,200	24%
$100	100	$105	$200	$2,400	24%
$150	100	$157.50	$300	$3,600	24%
$200	100	$210	$400	$4,800	24%
$500	100	$525	$1,000	$12,000	24%

These are estimates. Actual premiums depend on implied volatility, time to expiration, and how far out-of-the-money the strike is. Higher volatility = higher premiums. Farther OTM strikes = lower premiums but less chance of being called away.

Choosing Your Strike Price

Strike Distance	Premium	Chance of Being Called	Best For
At-the-money (ATM)	Highest	~50%	Maximum income, willing to sell shares
2-3% out-of-the-money	High	~30-40%	Good balance of income and upside
5% out-of-the-money	Moderate	~15-25%	Want to keep shares, decent income
10% out-of-the-money	Low	~5-10%	Almost certain to keep shares, small income
15%+ out-of-the-money	Very low	~1-3%	Token income, basically just holding stock

When Covered Calls Work Best

• Sideways markets: Stock is flat for months. Instead of watching it do nothing, you collect 2-3% monthly in premium
• Stocks you would sell anyway: You want to sell at $110. Sell a $110 call and get paid to wait for that price
• Income generation: Retirees or income investors use covered calls to generate cash flow from existing positions
• Reducing cost basis: Each premium collected reduces your effective purchase price. After 6 months of $200 premiums, your $100 stock effectively cost you $88

When Covered Calls Hurt

• Strong bull markets: If the stock runs 30%, your shares get called away and you miss most of the move. You keep the premium plus gains up to the strike, but cap your upside
• Earnings announcements: Stocks can gap 10-20% on earnings. If you sell a call before earnings and the stock surges, you get capped at the strike price
• Stock crashes: The premium cushion is small (2-3%). If the stock drops 15%, you still lose 12-13% on the position. Covered calls are not a hedge against significant declines

Calculate Your Covered Call

• Options Profit Calculator — model any call scenario
• Stock Profit Calculator — stock-only P&L
• Position Size Calculator — how many shares to hold