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 Ways to Manage Your Money and Taxes in Retirement Careful planning and tax-efficient drawdown strategies can help you enjoy the lifestyle you've dreamed of in retirement. Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. Once Upon a Goal Do you know how to set up your financial goals for success? This knight does.