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 The Pre-Retirement Checklist This checklist can give you a quick snapshot of how prepared you are. Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card.