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. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content IRA Withdrawals that Escape the 10% Tax Penalty The list of IRA withdrawals that may be taken without incurring a 10% early penalty has grown. Best-Performing Asset Classes Bonds may outperform stocks one year only to have stocks rebound the next. Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are?