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 ABC’s of Auto Insurance What kind of auto insurance should you have? Do you know? Protection Against Uninsured Drivers You’re hit by an uninsured driver. Now what? Are you protected against financial losses? Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers.