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 Question Thank you! Oops! Related Content Retirement Traps to Avoid Beware of these traps that could upend your retirement. How to Retire Early Retiring early sounds like a dream come true, but it’s important to take a look at the cold, hard facts. Social Security: Maximizing Benefits There are other ways to maximize Social Security benefits, in addition to waiting to claim them.