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 Question Thank you! Oops! Related Content Are Alternative Investments Right for You? With alternative investments, it’s critical to sort through the complexity. Global and International Funds Investors seeking world investments can choose between global and international funds. What's the difference? How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits.