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 How Stocks Work Understanding how a stock works is key to understanding your investments. Should I Accept a Free Credit Lock? Learn the ins and outs of credit locks, freezes, and more. Your Shifting Risk Tolerance Time and market performance may subtly and slowly imbalance your portfolio.