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 Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. The Lowdown on Those Free Credit Scores What’s the deal with your yearly free credit report? The Utility of Sector Investing Successful sector investing is dependent upon an accurate analysis about when to rotate in and out.