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 Why Regular Rebalancing Makes Sense Without your knowing, your investment portfolio could be off-kilter. Critical Estate Documents Sound estate management includes creating financial and healthcare documents. Here's an inside look. Caring for Aging Parents As our nation ages, many Americans are turning their attention to caring for aging parents.