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 Big is Money? Learn a little about worldwide currency in this fun infographic What is the Value of Your Business? Ascertaining the value of your business is important for a variety of reasons. Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind.