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 Question Thank you! Oops! Related Content Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. Find That Lost Retirement Account With over 24 million “forgotten” 401(k) accounts, you may be surprised to learn of your unclaimed “found” money. Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process.