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 Content Retirement Redefined Around the country, attitudes about retirement are shifting. Retirement Questions That Have Nothing to Do With Money Things to consider before retirement. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.