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 When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? Financially Savvy at Six Figures Help your clients with these practical steps to make the most of their six-figure income. Jane Bond: Infiltrating the Market Agent Jane Bond is on the case, cracking the code on bonds.