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 | Related Content What Smart Investors Know Smart investors take the time to separate emotion from fact. Earnings for All Seasons Earnings season can move markets. What is it and why is it important? How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset.