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 Leaving Your Lasting Legacy Want to do more with your wealth? You might want to consider creating a charitable foundation. Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.