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 Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit. Estimate Your RMD Help determine the required minimum distribution from an IRA or other qualified retirement plan. To Buy or Not to Buy The decision whether to buy or rent a home may have long-term implications.