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 Question Thank you! Oops! Related Content Historical Inflation This calculator shows how inflation over the years has impacted purchasing power. Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind. Retiring Wild: National Parks and You Get ready to enjoy America’s national park system with this helpful article.