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 Your Shifting Risk Tolerance Time and market performance may subtly and slowly imbalance your portfolio. Data Thieves from Outer Space Learn about the dangers of internet fraud with this highly educational and fun “pulp” comic. Retirement Plan Choices for Small Businesses Retirement choices can be intimidating. Picking the right strategy.