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 New Retirement Contribution Limits for 2024 A look at the new, record-high retirement contribution limits from the IRS. What’s Your Investment IQ? You make decisions for your portfolio, but how much do you really know about the products you buy? Try this quiz What Do Your Taxes Pay For? Here's a breakdown of how the federal government spends your tax money.