Roth 401(k) vs. Traditional 401(k) This calculator compares employee contributions to a Roth 401(k) and a traditional 401(k). 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 Navigating Retirement Pitfalls Why are they made again and again? Making sense of these errors in judgement. What's New for Social Security? There have been a number of changes to Social Security that may affect you, especially if you are nearing retirement. Your Changing Definition of Risk in Retirement A change in your mindset during retirement may drive changes to your portfolio.