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 Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. Bi-Weekly Payments This calculator estimates the savings from paying a mortgage bi-weekly instead of monthly. Saving for College This calculator can help you estimate how much you should be saving for college.