Potential Income from an IRA Estimate your monthly and annual income from various IRA types. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Related Content 18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? Certain Uncertainties in Retirement The uncertainties we face in retirement can erode our sense of confidence. An Inside Look at Retirement Living A number of questions and concerns need to be addressed to help you better prepare for retirement living.