Options calculators · long & short positions
Options calculators for every trade you make
Free, broker-grade calculators for stock options: model profit and loss, breakeven, the Greeks, spreads and risk for long or short positions in seconds. Built for individual and professional investors.
The calculator directory
Every calculator, organized by how you trade
From a single long call to a four-leg iron condor, each tool returns honest payoff math, breakevens and the Greeks.
Profit & single-leg
8 tools
Spreads
6 tools
Pricing & Greeks
7 tools
Income strategies
2 tools
Risk, leverage & cost
9 tools
Why investors trust the numbers
Honest math, not a black box
Broker-grade accuracy
Every premium defaults to a Black-Scholes theoretical price, every payoff uses the 100× contract multiplier, and every output is calculated, never rounded into a guess.
Real Greeks, not guesses
Delta, gamma, theta, vega and rho are derived from the model and shown per share and per contract, so you see exactly how time, price and volatility move your position.
Free, with no sign-up
No account, no paywall, no email wall. Open any calculator, run your scenario, and read a full breakdown with breakeven, max profit, max loss and probability of profit.
How it works
Three steps to a clear answer
No spreadsheet, no manual Black-Scholes. Pick a tool, enter your trade, and read the result.
Choose your strategy
Single-leg, vertical spread, income play or risk check. Start from the directory above.
Enter the trade
Underlying, strike, premium, days to expiration and contracts. Leave premium blank to use the theoretical Black-Scholes value.
Read the breakdown
Profit and loss, breakeven, max profit, max loss, return on risk, probability of profit and the full Greek set, with a payoff table across prices.
About the platform
What is Options Calculators?
Options Calculators is a free, worldwide suite of stock-option calculators built for individual and professional investors. Whether you are buying a single call, writing a covered call for income, or balancing a four-leg iron condor, each calculator turns your inputs into the numbers that actually matter: profit and loss, breakeven, maximum profit, maximum loss, return on risk and the Greeks.
Every tool models both long and short positions with the same rigor a desk would expect. Premiums default to a Black-Scholes theoretical price so you can run a scenario before you ever open a chain, contracts use the standard 100-share multiplier, and probabilities are derived from the model rather than invented. The result is a set of options calculators you can trust for quick checks and for serious position planning alike.
Pair any calculator with our plain-English guides on covered calls, the poor man’s covered call, straddles versus strangles and how to read an options chain. Together they make Options Calculators a single home for pricing, payoff and risk, with no account, no paywall, and no jargon you have to decode first.
What traders say
Built for the way investors actually trade
“The covered call calculator gives me static and if-called returns annualized in one view. It replaced the spreadsheet I’d used for years.”
“Finally, an iron condor tool that shows both breakevens and probability of profit honestly. The payoff table is exactly what I check before I place the order.”
“I teach a small options group and send everyone here. The Greeks are shown per contract in dollars, which finally makes theta and vega click for new traders.”
“The breakeven and leverage calculators are my pre-trade checklist. Clean inputs, instant answer, and the math matches my broker to the cent.”
From the blog
Learn the strategies behind the tools
Cash Secured Put Calculator: Premium Income, Breakeven, and Annualized Return
A cash secured put calculator turns one short contract into hard numbers: the credit you collect, the static…
What Is Implied Volatility? IV, the Greeks, and How to Use It
Implied volatility is the market’s forecast of a stock’s move, priced into options. Learn IV vs historical volatility,…
Call Spread Option Calculator: Bull Call (Debit) vs Bear Call (Credit)
A call spread option calculator returns your net debit or credit, breakeven, max profit, and max loss for…
Call Option Calculator: Breakeven, Max Loss, and P&L
A call option calculator shows the profit and loss on a long position at expiration: you pay the…
Call and Put Calculator: Side by Side P&L, Breakeven, and Max Loss
A call and put calculator shows the profit and loss of a long call next to a long…
Credit Spread vs Debit Spread: Differences, Examples, and When to Use Each
Credit spread vs debit spread: one collects premium, the other pays for a directional move. Compare payoff, breakeven,…
Questions, answered
Frequently asked questions
Are the options calculators really free?
Yes. Every calculator on Options Calculators is free to use with no account, no email and no paywall. Run as many scenarios as you like.
Do they work for both long and short positions?
They do. Single-leg tools include a direction selector for long or short, and the spread tools cover debit and credit structures, so you can model the exact position you intend to trade.
Where do the premium and Greek values come from?
Premiums default to a Black-Scholes theoretical price from your inputs, and the Greeks are derived from the same model. You can always override the premium with a live market price for a precise result.
Is this financial advice?
No. The calculators are educational tools that produce estimates. Options involve risk and are not suitable for every investor. Always confirm pricing with your broker and consider professional advice for your situation.
Run your next trade through the numbers
Pick a calculator, model the position, and trade with the full picture in front of you.