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? Name Email Address Question Thank you! Oops! Related Contents Global and International Funds Investors seeking world investments can choose between global and international funds. What's the difference? Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program. Keys to Investing for Retirement There are some key concepts to understand when investing for retirement.