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Free calculators

Quick, plain calculators for the numbers behind the books. They run in your browser, and nothing you type is sent anywhere.

• ATR Stop and Position Size CalculatorSet the stop from how far the stock really moves on an ordinary day, then size the trade so a stop-out costs exactly what you chose to risk.
• Covered Call CalculatorSee what a covered call pays, where it breaks even, and what you give up if the stock runs past the strike.
• Cash-Secured Put CalculatorSee how much cash a put ties up, what it pays, and what you would really pay for the stock if you are assigned.
• Dividend Income CalculatorAdd your dividend holdings to see each one's yield, your yield on cost, and the income the portfolio pays each year and each month.

For education only, not financial advice.