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 Home Mortgage Deduction Use this calculator to assess the potential benefits of a home mortgage deduction. Should I Pay Off Debt or Invest? This calculator will help determine whether you should invest funds or pay down debt. Acres of Diamonds In life it often happens that the answers to our most pressing questions are right in our own backyards.