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. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Infographic: Cash for Life? Lottery Isn’t the Only Way Guaranteed income can safeguard against running out of money. Traditional vs. Roth IRA One or the other? Perhaps both traditional and Roth IRAs can play a part in your retirement plans. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.