Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content 18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose? Women and Financial Strategies Most women don’t shy away from the day-to-day financial decisions, but some may be leaving their future to chance. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.