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 Putting a Price Tag On Your Health Being healthy not only makes you feel good, it may also help you financially. Are Alternative Investments Right for You? With alternative investments, it’s critical to sort through the complexity. What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA.