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 Perception vs. Reality There’s an alarming difference between perception and reality for current and future retirees. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.