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 Healthcare Costs in Retirement Without a solid approach, health care expenses may add up quickly and potentially alter your spending. Retiree Health Care Coverage Overseas Retirees traveling abroad need to know that their health insurance travels with them. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.