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 Buying Auto Insurance For Teen Drivers Tips on insuring your teen driver. Tax Rules When Selling Your Home The tax rules governing profits you realize from the sale of your home have changed in recent years. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates.