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 What to Look for in Personal Finance Apps An increasing number have been developed to help individuals with their personal finances. Eight Mistakes That Can Upend Your Retirement There are common mistakes you can avoid when saving for retirement. The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding.