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 Tax Deductions You Won't Believe Here are some examples of deductions from the IRS that were permitted and some that were, uh, too creative. Why do Renters Have to Save More? How much more would retirement cost if you owned your home rather than rented? It could actually be several times less. Starting a Roth IRA for a Teen This early financial decision could prove helpful over time.