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 Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer. Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program. Impact of Taxes and Inflation Estimate the potential impact taxes and inflation can have on the purchasing power of an investment.