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 Investing for Impact Learn how to build a socially conscious investment portfolio and invest in your beliefs. Retiring the 4% Rule A portfolio created with your long-term objectives in mind is crucial as you pursue your dream retirement. From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history.