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 Dog Bites Neighbor. Now What? Even dogs have bad days. So, what happens when your dog bites a neighbor or passing pedestrian? When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? To Buy or Not to Buy The decision whether to buy or rent a home may have long-term implications.