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 Mastering Mobile Lingo Do you understand these common mobile slang terms? Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.