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 Message Thank you! Oops! Related Content Saving for Retirement This calculator can help you estimate how much you may need to save for retirement. Understanding Extended Care Understanding the types of extended care services—and what those services could cost—may be critical. Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA.