Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. 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 Question Thank you! Oops! Related Content The Basics of Medicare Learn all about Medicare basics in this informative and insightful article. Retirement Accounts When You Change Your Job This video discusses issues related to your retirement accounts when you move on from your job. What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA.