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 Deciding When to Take Social Security One of the most common questions people ask about Social Security is when they should start taking benefits. Getting a Head Start on College Savings A few strategies that may help you prepare for the cost of higher education. What to Look for in Personal Finance Apps An increasing number have been developed to help individuals with their personal finances.