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 The Business Cycle How will you weather the ups and downs of the business cycle? Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them. Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit.