A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. 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 Countdown to College Preparing for college means setting goals, staying focused, and tackling a few key milestones along the way. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. Separating the Signal From the Noise A good professional provides important guidance and insight through the years.