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 The Cycle of Investing Understanding the cycle of investing may help you avoid easy pitfalls. How Stocks Work Understanding how a stock works is key to understanding your investments. 5 Smart Investing Strategies Getting what you want out of your money may require the right game plan.