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. Share | Have A Question About This Topic? Address Thank you! Oops! Related Contents The Cycle of Investing Understanding the cycle of investing may help you avoid easy pitfalls. The Business Cycle Understanding the economy's cycles can help put current business conditions in better perspective. Keys to Investing for Retirement There are some key concepts to understand when investing for retirement.