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 Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. Leaving Your Lasting Legacy Want to do more with your wealth? You might want to consider creating a charitable foundation. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work.