My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Budgeting After a Divorce Divorce is the second most stressful time in a person's life. Here's some tips to get through it. 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? Women and Financial Strategies Most women don’t shy away from the day-to-day financial decisions, but some may be leaving their future to chance.