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 Who Is Your Trusted Contact? This investment account question is vital and answered as early as possible. Understanding Extended Care Understanding the types of extended care services—and what those services could cost—may be critical. Comparing Mortgage Terms Estimate the total cost in today's dollars of various mortgage alternatives.