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 Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are? The Cost of Procrastination Don't let procrastination keep you from pursuing your financial dreams and goals. The Facts About Income Tax Millions faithfully file their 1040 forms each April. But some things about federal income taxes may surprise you.