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 From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history. Your Shifting Risk Tolerance Time and market performance may subtly and slowly imbalance your portfolio. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits.