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 The Power of Tax-Deferred Growth Why are 401(k) plans, annuities, and IRAs so popular? Tax Efficiency in Retirement What role would taxes play in your investment decisions? An Inside Look at Retirement Living A number of questions and concerns need to be addressed to help you better prepare for retirement living.