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 Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst? Inventorying Your Possessions Creating an inventory of your possessions can save you time, money and aggravation in the event you someday suffer losses. Mutual Funds vs. ETFs Exchange-traded funds have some things in common with mutual funds, but there are differences, too.