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 How Stocks Work Understanding how a stock works is key to understanding your investments. The Sequence of Returns A look at how variable rates of return impact investors over time. When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits.