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 The Pre-Retirement Checklist This checklist can give you a quick snapshot of how prepared you are. FIRE Retirement This short, informative article teaches the basics of the FIRE movement. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.