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. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Contents Social Security: By the Numbers Here are five facts about Social Security that might surprise you. The History of Retirement Do you know where the idea of “retirement” comes from? Retirement Plan Distributions There are a number of ways to withdraw money from a qualified retirement plan.