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 Please Leave Home Without It Concerns over identity theft continue to grow, especially with data breaches at major companies and financial institutions. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process.