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 Tuning Your Social Security Benefit When should you take your Social Security benefit? Retirement and Quality of Life Asking the right questions about how you can save money for retirement without sacrificing your quality of life. Saving Early & Letting Time Work For You The earlier you start pursuing financial goals, the better your outcome may be.