A stock options calculator can be a helpful tool for assessing the potential risk and reward of investing in options. To use a stock options calculator, you will need to input certain information such as the stock price, the strike price, the expiration date, and the volatility of the stock.The calculator will then generate various metrics such as the option's delta, gamma, theta, and vega, which can help you understand how the option price may change in response to different market factors.