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 | Have A Question About This Topic? Address Thank you! Oops! Related Contents 18 Years Worth of Days The average retirement lasts for 18 years. Are you prepared to fill that many days? The Cost of Procrastination Don't let procrastination keep you from pursuing your financial dreams and goals. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates.