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 When Heirs are Imperfect The money problems or bad lifestyle habits of adult children could lead to the squandering of any inheritance they receive. Charitable Giving: Smart from the Heart Do you have causes that you want to support with donations? Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind.