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 to Retire Early Retiring early sounds like a dream come true, but it’s important to take a look at the cold, hard facts. Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card. Should I Pay Off Debt or Invest? This calculator will help determine whether you should invest funds or pay down debt.