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 Don't Buy The Hype There are a lot of misconceptions about Social Security. Here’s the truth about three of them. 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.