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 Message Thank you! Oops! Related Content Potential Income from an IRA Estimate your monthly and annual income from various IRA types. Retirement Realities Many pre-retirees can become focused on the “ideal” retirement, but turning that dream into a reality can be tricky. What to Look for in an Extended-Care Policy Here’s a list of 8 questions to ask that may help you better understand the costs and benefits of extended-care insurance.