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 Can a Million Dollars Buy You? $1 million in a diversified portfolio could help finance part of your retirement. Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are? Keys to Investing for Retirement There are some key concepts to understand when investing for retirement.