What You Need to Know About Social Security Every so often, you’ll hear about Social Security benefits running out. But is there truth to the fears, or is it all hype? Related Content My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. 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?