Free browser-based modeling

No login. No live quote feed. Every premium and assumption stays editable.

Review formulas
Calculator support

Contact Option Profit Calculator about bugs, formulas or accessibility

Send a reproducible example when reporting a calculation issue. Do not include brokerage credentials, account numbers, or confidential financial information.

Email support

Send a calculator support message

support@optionprofitcalculator.org

Report an options calculator problem

Include the page URL, strategy name, underlying price, each leg's type, direction, strike, premium, quantity and DTE, plus volatility, rates, dividends, commissions, and the result you expected. A screenshot can help with a layout issue, but typed inputs make a calculation report reproducible.

For accessibility problems, include the browser, device, assistive technology if relevant, and the control or content that was difficult to use.

Questions we can and cannot answer

We can review software behavior, formulas, content clarity, broken links, privacy questions, and feature suggestions. We cannot choose a trade, interpret your portfolio, provide a live quote, recommend a strike or expiration, assess suitability, or offer tax and legal advice.