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 Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. The Utility of Sector Investing Successful sector investing is dependent upon an accurate analysis about when to rotate in and out. What Can a Million Dollars Buy You? $1 million in a diversified portfolio could help finance part of your retirement.