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? How to Leave a Lasting Impact with Sustainable Investing Want your investments to drive positive change? Learn how sustainable investing can help you make a difference! When Markets React When markets shift, experienced investors stick to their strategy.