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 Social Security: By the Numbers Here are five facts about Social Security that might surprise you. Social Security: Maximizing Benefits There are other ways to maximize Social Security benefits, in addition to waiting to claim them. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.