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 If You Get Audited? The chances of an IRS audit aren't that high. And being audited does not necessarily imply that the IRS suspects wrongdoing. Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card. Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process.