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 Question Thank you! Oops! Related Content Investment Challenges of the Affluent Investor Affluent investors face unique challenges when putting together an investment strategy. Make sure you keep these in mind. Life and Death of a Twenty Dollar Bill How long does a $20 bill last? Medicare At 65+ 65 or older? It may be time to enroll in Medicare. Read to learn if you’re eligible.