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 Message Thank you! Oops! Related Content From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history. The ABCs of Zero Coupon Bonds Understanding some basic concepts may help you assess whether zero-coupon bonds have a place in your portfolio. Impact of Taxes and Inflation Estimate the potential impact taxes and inflation can have on the purchasing power of an investment.