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 A Bucket Plan to Go with Your Bucket List A bucket plan can help you be better prepared for a comfortable retirement. Social Security: The $64,000 Question One of the most common questions people ask about Social Security is when they should start taking benefits. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.