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, with many lasting even longer. Will you fill your post-retirement days with purpose? Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.