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. Related Content Assess Your Life Insurance Needs This calculator estimates how much life insurance you would need to meet your family's needs if you were to die prematurely. A Taxing Story: Capital Gains and Losses Understanding how capital gains are taxed may help you refine your investment strategies. The Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer.