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 Should I Pay Off Debt or Invest? This calculator will help determine whether you should invest funds or pay down debt. Orchestrating Your Retirement Accounts Getting the instruments of your retirement to work in concert may go far in realizing the retirement you imagine. Retirement Realities Many pre-retirees can become focused on the “ideal” retirement, but turning that dream into a reality can be tricky.