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 How to Bake a Pie-R-A Roth IRAs are tax-advantaged differently from traditional IRAs. Do you know how? How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset. What Is My Current Cash Flow? Assess whether you are running “in the black” or “in the red” each month.