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 What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. Earnings for All Seasons Earnings season can move markets. What is it and why is it important? How to Appeal Your Property Taxes For homeowners who think their property taxes are too high, there are ways to appeal.