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 Historical Inflation This calculator shows how inflation over the years has impacted purchasing power. Medicare Advantage 101 Overview of Medicare Advantage, what’s in them, special rules, and more. Spotting Credit Trouble The wise use of credit is a critical skill. These 10 questions will help you assess your skill level.