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 It Was the Best of Times, It Was the Worst of Times All about how missing the best market days (or the worst!) might affect your portfolio. Investing with Your Heart For some, the social impact of investing is just as important as the return, perhaps more important. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences.