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 Retirement and Quality of Life Asking the right questions about how you can save money for retirement without sacrificing your quality of life. Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process. Roth 401(k) vs. Traditional 401(k) This calculator compares employee contributions to a Roth 401(k) and a traditional 401(k).