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 Financially Savvy at Six Figures Help your clients with these practical steps to make the most of their six-figure income. Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. Roth IRA for Kids Learn about the benefits and requirements of opening a Roth IRA for kids.