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 Mastering Mobile Lingo Do you understand these common mobile slang terms? Leaving Your Lasting Legacy Want to do more with your wealth? You might want to consider creating a charitable foundation. Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year.