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 A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss. Managing Money as a Couple Keys to preparing to grow wealthy together. Stop Wasting Money One way to find money is to examine your current spending habits and eliminate money wasters.