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 Avoiding Cognitive Decline Try these activities to keep your brain sharp. The Latte Lie and Other Myths Check out this video to begin separating fact from fiction. Capital Gains Tax When Selling Your Home If your clients are buying or selling a home, use this to help them determine if they qualify for capital gains taxes.