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 What Can a Million Dollars Buy You? $1 million in a diversified portfolio could help finance part of your retirement. Tax Rules When Selling Your Home The tax rules governing profits you realize from the sale of your home have changed in recent years. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.