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 Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last. Tax Rules When Selling Your Home The tax rules governing profits you realize from the sale of your home have changed in recent years. Buying Auto Insurance For Teen Drivers Tips on insuring your teen driver.