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 A Taxing Story: Capital Gains and Losses Understanding how capital gains are taxed may help you refine your investment strategies. Impact of Taxes and Inflation Estimate the potential impact taxes and inflation can have on the purchasing power of an investment. What Is My Current Cash Flow? Assess whether you are running “in the black” or “in the red” each month.