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 Capital Gains Tax When Selling Your Home If your clients are buying or selling a home, use this to help them determine if they qualify for capital gains taxes. The Long Run: Women and Retirement For women, retirement strategy is a long race. It’s helpful to know the route. Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year.