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 When Special Care Is Needed: The Special Needs Trust A special needs trust helps care for a special needs child when you’re gone. How Stocks Work Understanding how a stock works is key to understanding your investments. Are Alternative Investments Right for You? With alternative investments, it’s critical to sort through the complexity.