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 Three Key Questions to Answer Before Taking Social Security When to start? Should I continue to work? How can I maximize my benefit? Universal Life Insurance Universal life insurance is permanent insurance with a flexible premium. Here's how it works. 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.