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 Managing an Inheritance A windfall from a loved one can be both rewarding and complicated. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. It May Be Time for a Financial Checkup It’s never a bad time to speak with your financial professional about changes in your situation.