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 Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process. Systematic Withdrawals in Retirement Taking regular, periodic withdrawals during retirement can be quite problematic. Do You Owe The AMT? If you want to avoid potential surprises at tax time, it may make sense to know where you stand when it comes to the AMT.