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 What Smart Investors Know Savvy investors take the time to separate emotion from fact. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. Term vs. Permanent Life Insurance When considering life insurance, it's important to understand your options.