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 Pay Yourself First It sounds simple, but paying yourself first can really pay off. Choosing a Business Structure Entrepreneurs all face the same question, “Which business structure should I adopt?” A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss.