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 Why Regular Rebalancing Makes Sense Without your knowing, your investment portfolio could be off-kilter. Tuning Your Social Security Benefit When should you take your Social Security benefit?