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 Question Thank you! Oops! Related Content Three Key Questions to Answer Before Taking Social Security When to start? Should I continue to work? How can I maximize my benefit? Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college. Historical Inflation This calculator shows how inflation over the years has impacted purchasing power.