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 Message Thank you! Oops! Related Content How Income Taxes Work A quick look at how federal income taxes work. Women and Wealth: A Pivot Towards Retirement Tips and strategies for women approaching retirement to ensure a smooth transition. Your Emergency Fund: How Much Is Enough? Having an emergency fund may help alleviate the stress and worry associated with a financial crisis.