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 8 Financial Milestone Birthdays Get ready to celebrate your financial birthdays in this informative infographic. Historical Inflation This calculator shows how inflation over the years has impacted purchasing power. What Can a Million Dollars Buy You? $1 million in a diversified portfolio could help finance part of your retirement.