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 All Muni Bonds Are Not Created Equal Gaining a better understanding of municipal bonds makes more sense than ever. Countering Counterfeit Currency Combating counterfeiting remains core to preserving the integrity of the nation’s money. When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits.