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 Why do Renters Have to Save More? How much more would retirement cost if you owned your home rather than rented? It could actually be several times less. Investing with Your Heart For some, the social impact of investing is just as important as the return, perhaps more important. Estimate Your RMD Help determine the required minimum distribution from an IRA or other qualified retirement plan.