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 Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last. Disability and Your Finances In the event of an unforeseen accident or illness, disability insurance may be a good way to protect your income and savings. Required Reading: The Economic Report of the President The Economic Report of the President can help identify the forces driving — or dragging — the economy.