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 My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them. Retirement Traps to Avoid Beware of these traps that could upend your retirement.