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 Problems with Probate Probate can be a completely public process, or it can be managed to include as little information as possible. How Stocks Work Understanding how a stock works is key to understanding your investments. What Can a Million Dollars Buy You? $1 million in a diversified portfolio could help finance part of your retirement.