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 Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself. Medicare At 65+ 65 or older? It may be time to enroll in Medicare. Read to learn if you’re eligible. What's So Great About a Rollover? Making a career move requires tough decisions, not the least of which is what to do with the funds in your retirement plan.