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 Pre-Retirement Checklist This checklist can give you a quick snapshot of how prepared you are. Systematic Withdrawals in Retirement Taking regular, periodic withdrawals during retirement can be quite problematic. Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them.