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 Building Your Legacy A four-step framework for building a personal legacy. How Big is Money? Learn a little about worldwide currency in this fun infographic What Do Your Taxes Pay For? Here's a breakdown of how the federal government spends your tax money.